Coding challenge:. Arbitrary size int and float class!

Would love to see two challenge videos/series.

First a "big" int class where you can create an instance of an arbitrary size int with all the bells and whistles (multiplication, addition, etc...)

Second, the same thing but a float class with arbitrary precision (say, I want a 4,444,444 bit float).

These both would also be good topics to cover OOP concepts as well as library creation best practices.

Would hope that for the mathematic operations you do everything on the bit level, plenty of algorithms to have fun figuring out!