In the video, a person is writing on a whiteboard with a marker. They are writing the multiplication problem \"43 x 11\" and then breaking it down into smaller parts. The person writes \"43 x 3\" and \"43 x 4\" separately, and then writes \"43 x 3\" again, but this time they write \"43 x 4\" below it. They then write \"43 x 30\" below \"43 x 4.\" The person is using different colors of markers to write the different parts of the problem. The whiteboard is clean and white, and the person's hand is visible as they write.