Vertical operation in PPT is complicated. Here we refer to other excellent mathematical animation demonstration software GeoGebra, which has excellent cross-platform operability and can be operated in the browser without installing software. The following is a demonstration animation of vertical and step-by-step operation written by myself. You can enter any positive integer here, and the vertical calculation step will be automatically generated. If you find any problems, write privately in time.

Web page link

If you need to insert animation demonstration in PPT, you can use screen recording software, or export GIF format in GeoGebra, and you can visit the webpage link to customize my ggb file. If you have any good ideas, please give me a private message.