How do you understand what are the general principles of writing numbers in different number systems?

There are many ways to write numbers using numbers, called the numeral system. The magnitude of the number may or may not depend on the order of the digits in the record. This property is determined by the number system and serves as the basis for the simplest classification of such systems, which allows all number systems to be divided into:
1) positional – number systems in which the value of each numerical sign (digit) in the number recording depends on its position (digit).
2) non-positional – number systems in which the value that the digit denotes does not depend on the position in the number.