decimal values up to 10 digits price

I'm new in the SAP world, especially in this module we are still deploying.

We're playing the project and had the need to open a case with the SAP Support, on a very critical issue here in the company which is the

liter price of fuel which is made in decimal places, which can be done with up to 10 decimal places after the comma.

Example: 1 liter R $ 2.2132345643 and SAP allows only $ 2.22

that is, all the fuel market in both the input, as in Goods Issue, there is this variation of decimals. the fact is that

we need to resolve it for continuation of the project.

Regards