Floor-cleaning machine for cleaning a floor surface having a chassis for moving the floor-cleaning machine over the floor surface to be cleaned in such a way that the floor-cleaning machine is rotatable about an axis of rotation which extends perpendicularly to the floor surface to be cleaned, having a cleaning device which is fastened to the chassis and which can be brought into a working position in which the cleaning device engages with the floor surface to be cleaned in such a way that a cleaning mirror surface with a cleaning-mirror-surface width and with a cleaning-mirror-surface distance between the cleaning mirror surface and the axis of rotation is defined, wherein the cleaning-mirror-surface distance is less than or equal to half the cleaning-mirror-surface width, wherein the floor-cleaning machine has means which are configured in such a way that the cleaning device is brought into the working position in such a way that the cleaning device engages with the floor surface to be cleaned in such a way that the cleaning mirror surface with the cleaning-mirror-surface width and with the cleaning-mirror-surface distance between the cleaning mirror surface and the axis of rotation is defined, the floor-cleaning machine is moved over the floor surface to be cleaned along a cleaning path comprising multiple cleaning-path sections, which are arranged at least sectionally parallel to one another and are to be covered in succession, in such a way that the cleaning device engages with the floor surface to be cleaned in such a way that a cleaning region which extends along the cleaning path and which has a cleaning-region width corresponding to the cleaning-mirror-surface width is defined, the floor-cleaning machine, at the end of at least one cleaning-path section of the cleaning-path sections, is rotated by an angle of rotation of at least 90° about the axis of rotation which extends perpendicularly to the floor surface to be cleaned, and the floor-cleaning machine is moved along the cleaning-path section to be covered next in such a way that a cleaning-region section extending along the cleaning-path section to be covered next adjoins the cleaning-region section extending along the cleaning-path section previously covered or at least partially overlaps the cleaning-region section extending along the cleaning-path section previously covered. having a chassis for moving the floor-cleaning machine over the floor surface to be cleaned in such a way that the floor-cleaning machine is rotatable about an axis of rotation which extends perpendicularly to the floor surface to be cleaned, having a cleaning device which is fastened to the chassis and which can be brought into a working position in which the cleaning device engages with the floor surface to be cleaned in such a way that a cleaning mirror surface with a cleaning-mirror-surface width and with a cleaning-mirror-surface distance between the cleaning mirror surface and the axis of rotation is defined, wherein the cleaning-mirror-surface distance is less than or equal to half the cleaning-mirror-surface width, wherein the floor-cleaning machine has means which are configured in such a way that the cleaning device is brought into the working position in such a way that the cleaning device engages with the floor surface to be cleaned in such a way that the cleaning mirror surface with the cleaning-mirror-surface width and with the cleaning-mirror-surface distance between the cleaning mirror surface and the axis of rotation is defined, the floor-cleaning machine is moved over the floor surface to be cleaned along a cleaning path comprising multiple cleaning-path sections, which are arranged at least sectionally parallel to one another and are to be covered in succession, in such a way that the cleaning device engages with the floor surface to be cleaned in such a way that a cleaning region which extends along the cleaning path and which has a cleaning-region width corresponding to the cleaning-mirror-surface width is defined, the floor-cleaning machine, at the end of at least one cleaning-path section of the cleaning-path sections, is rotated by an angle of rotation of at least 90° about the axis of rotation which extends perpendicularly to the floor surface to be cleaned, and the floor-cleaning machine is moved along the cleaning-path section to be covered next in such a way that a cleaning-region section extending along the cleaning-path section to be covered next adjoins the cleaning-region section extending along the cleaning-path section previously covered or at least partially overlaps the cleaning-region section extending along the cleaning-path section previously covered.