Which is an example of how denomination is divisible?

An example of how a denomination is divisible is thru the example of an American dollar where it is equal to 4 quarters

The face value or stated financial instruments which includes coins, currency notes, bond, or other fixed-income investments are examples of a denomination. These denominations can be divisible if there won’t be a remainder during the division process.

it translates into:

read the letter of your pen pal. write and answer 3 questions.