Method for operating a hand-guided working apparatus, wherein the working apparatus has: - a movable working tool installation; - a shaft, wherein the shaft is designed for moving the working tool installation; - a drive motor system, wherein the drive motor system is designed for driving the shaft; - wherein the working tool installation, the shaft and the drive motor system at least in part form at least one part of a system at least capable of rotational oscillation; and - a controllable oscillation damping installation, wherein the oscillation damping installation is designed at least for damping and/or for reducing an excitation of at least one oscillation of the system capable of rotational oscillation and/or excitable by the system capable of rotational oscillation; - wherein the method comprises the steps: a) operating the drive motor system for driving the shaft for moving the working tool installation; and b) controlling the oscillation damping installation during operation in such a manner that the oscillation is at least damped and/or an excitation of the oscillation is reduced, characterized in that - the drive motor system and the oscillation damping installation are at least partially integrated, and - wherein the drive motor system has an electric drive motor, wherein the electric drive motor is designed for driving the shaft, and wherein the drive motor system having the electric drive motor and the oscillation damping installation are at least partially integrated; and - wherein step a) comprises: operating the electric drive motor for driving the shaft for moving the working tool installation; and wherein step a) and/or step b) comprise/comprises: operating and/or controlling the electric drive motor in such a manner that the oscillation is at least damped and/or an excitation of the oscillation is reduced. - a movable working tool installation; - a shaft, wherein the shaft is designed for moving the working tool installation; - a drive motor system, wherein the drive motor system is designed for driving the shaft; - wherein the working tool installation, the shaft and the drive motor system at least in part form at least one part of a system at least capable of rotational oscillation; and - a controllable oscillation damping installation, wherein the oscillation damping installation is designed at least for damping and/or for reducing an excitation of at least one oscillation of the system capable of rotational oscillation and/or excitable by the system capable of rotational oscillation; - wherein the method comprises the steps: a) operating the drive motor system for driving the shaft for moving the working tool installation; and b) controlling the oscillation damping installation during operation in such a manner that the oscillation is at least damped and/or an excitation of the oscillation is reduced, characterized in that a) operating the drive motor system for driving the shaft for moving the working tool installation; and b) controlling the oscillation damping installation during operation in such a manner that the oscillation is at least damped and/or an excitation of the oscillation is reduced, - the drive motor system and the oscillation damping installation are at least partially integrated, and - wherein the drive motor system has an electric drive motor, wherein the electric drive motor is designed for driving the shaft, and wherein the drive motor system having the electric drive motor and the oscillation damping installation are at least partially integrated; and - wherein step a) comprises: operating the electric drive motor for driving the shaft for moving the working tool installation; and wherein step a) and/or step b) comprise/comprises: operating and/or controlling the electric drive motor in such a manner that the oscillation is at least damped and/or an excitation of the oscillation is reduced.