A number has three digits, for example 472.

Plan. The ones digit is the remainder after dividing by 10. To get the tens digit, first remove the ones digit with // 10, and then take the remainder again. The hundreds digit is what is left after removing two digits.

1. 472 % 10 is 2, the ones digit.
2. 472 // 10 is 47, and 47 % 10 is 7, the tens digit. The line number // 10 % 10 does both in order, left to right.
3. 472 // 100 is 4, the hundreds digit.