Money makes the world go round, but unfortunately there is no way for anyone to use money without leaving a paper trail or some other kind of record. A big part of the reason why that is the case has to do with the fact that if money is not regulated at the very least to a certain extent, there are several ways in which it could be used for rather malicious things such as purchasing forbidden items or even something as innocuous as not paying the taxes that you owe at any given point in time.
The best way to keep track of your money is to regularly print out financial statements that authorities can read more of, but it might also be helpful if you tried to get these statements translated in some without a shadow of a doubt. Numbers that are used in various European languages remain more or less the same, but suffice it to say that if you want to extend your reach beyond the borders of Europe you are going to need to get these numbers translated into the language of the nation that you are hoping to start residing in before too much time has passed you by.
Financial statements also contain important information such as what you spent your money on, so even if the numbering system is consistent with other languages there would still be a bit of information that you would need to start getting translated. All of these things tend to matter if you want to avoid going through wrongful convictions later on in life or falsely being accused for some kind of fraud despite being entirely innocent.