Do y’all not have libraries

Maybe a stupid question, but can you even divide a number with infinite decimals?

I know you can find ratios of other infinitely repeating numbers by dividing them by 9,99,999, etc., divide those, and then write it as a decimal.

For example 0.17171717…/3

(17/99)/3 = 17/(99*3) = 17/297

but with 9 that would just be… one? 9/9=1

That in itself sounds like a basis for a proof but idk

To be fair they’re one of the most variable parts of our body, and we’re extremely familiar with them, so small mistakes are blown our of proportion

Damn it’s so close to figuring our hands