Why is there two shapes and two holes after Divide Objects Below?

Question

Adobe Illustrator

That is, as a result, we get 4 shapes, which is somehow difficult to understand, I thought that there should be one upper shape with which we divide the lower ones and two holes form under it. What is the easiest way to understand this tool? I would like to put it into work.

Answer 1

Why is there two shapes and two holes after Divide Objects Below?
Feel free to put into work. In the example, everything is clear and understandable: the circle acts as a cutting shape, the squares as pieces of paper. After cutting out, there are squares with holes and the "circles-holes" themselves, as if they were cut out of real paper. No matter how many objects there are, they will all be cut to fit.
Links from the first page of the search results, where the examples show the function:
Illustrator: Divide Object Below
Cropping a vector image
How to crop an image in Adobe Illustrator