Let's divide 40572 by 90
We want to divide 40572 by 90.

Going ahead to step 1:
4 divided by 90 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 90

Going ahead to step 2:
40 divided by 90 is 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Bring next digit (5) of the dividend behind the 40 and repeat the process: 405 / 90

Advancing to step 3:
The number 90 fits into 405 4 times, leaving a remainder of 45.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 360 from 405, we get 45.
Include the next digit (7) from the dividend after 45, then repeat: 457 / 90

Moving on to step 4:
457 divided by 90 is 5 with a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 45.0
Subtracting 450 from 457 leaves us with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 90

Advancing to step 5:
90 goes into 72 0 times with a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 450.0
Subtracting 0 from 72 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 6:
If we divide 720 by 90, we get 8 and a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 450.8
Deduct 720 from 720 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
When dividing 0 by 90, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 450.8
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
If we divide 0 by 90, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 450.8
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 450.8 with a remaining 0.0.