Scripts are always executed in the English locale, regardless of which locale and which separators are selected in the GameGuardian interface.

This means that the decimal separator is always a dot ("."), and the thousands separator is a comma (",").

Thus, if in the Russian locale (the decimal separator is a comma, the thousands separator is a space) you entered the search string 852 418 170D;9,786F:9 in the search, then in the script you will need to use 852,418,170D;9.786F:9:

gg.searchNumber('852,418,170D;9.786F:9')

This approach ensures that the script will work for everyone, regardless of which locale is selected in the interface.