Solution - Long subtraction

Subtract the numbers in the ones column from the top number:
0-0=0

Subtract the numbers in the tens column from the top number:
5-0=5

Subtract the numbers in the hundreds column from the top number:
2-0=2

Because the upper digit (2) in the thousands column is too small to get a positive difference, borrow 1 from the digit (1) in the next number place which becomes (0) and get (12).

Subtract the numbers in the thousands column from the top number:
12-4=8

Because the upper digit (0) in the ten thousands column is too small to get a positive difference, borrow 1 from the digit (1) in the next number place which becomes (0) and get (10).

Subtract the numbers in the ten thousands column from the top number:
10-2=8

Write 0 in the hundred thousands place.

The solution is: 88,250