This is more of a complaint than a question. Do you have a more specific question on recursion? Like multiplication, it's not a thing people write a lot about.
Speaking of multiplication, think of this.
Question:
What's a*b?
Answer:
If b is 1, it's a.
Otherwise, it's a+a*(b-1).
What's a*(b-1)? See the above question for a way to work it out.
