In the video, a person is seen writing on a whiteboard with a marker. The person writes the multiplication problem \"78 x 11\" and then proceeds to solve it step by step. They start by breaking down the numbers into smaller parts, writing \"7 + 8\" and \"1 + 1\" to the left of the equal sign. They then multiply the two numbers on the left to get \"75\" and add it to the number 8 to get \"75 + 8 = 83\". Finally, they write the product of the two numbers on the right, \"83\", completing the multiplication problem.