Give a better explanation on FastMoney internal representation

[feinstein]

The FastMoney docs here say:

FastMoney represents numeric representation that was optimized for speed. It represents a monetary amount only as a integral number of type long, hereby using a number scale of 100'000 (10^5).

What does this number scale of 100'000 (10^5) means?

I think this should me more clear at the docs for developers not much experienced with monetary programming techniques.

[stokito]

Related discussion https://stackoverflow.com/questions/50561015/java-fast-money-representation

[keilw]

@stokito would you be able to help with that?