How to replace a character with a newline in Emacs?

Question

I am trying to replace a character - say ; - with a new line using replace-string and/or replace-regexp in Emacs.

I have tried

Answer 1

Don't forget that you can always cut and paste into the minibuffer.

So you can just copy a newline character (or any string) from your buffer, then yank it when prompted for the replacement text.