You can think of it like this:

If a / b = c, then c • b = a

So if 0 / 0 = 1, then 1 • 0 = 0

Which is true. It feels right at first.

But what about other numbers?

If 0 / 0 = 7, then 7 • 0 = 0

That also works. But if every number works, then which one is the correct one?

The question boils down to:

Find x, where x • 0 = 0

Now it might be more clear that the question doesn't really make sense, so no answer will make sense.