This might be off-topic here, since most people speaking English write decimals with a period and not a comma, but I'm unsure where else to ask this. Let me know, if you know of a better place to ask or where to research this and I will remove my question.
How do people in countries that use commas as a decimal mark tell the difference between a decimal and a larger value?
For example, in the U.S., it's easy to tell the difference between 1.567 and 1,567. How would you tell the difference, in a country where they write their decimals like 1,567?