453172 ÷ 57 
We want to figure out the number of times 453172 can be divided by 57.

On to step 1:
4 divided by 57 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 57

On to step 2:
The number 57 fits into 45 0 times, leaving a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Take the next digit (3) from the dividend and append it to 45, then repeat: 453 / 57

Advancing to step 3:
When dividing 453 by 57, we get 7 with a remainder of 54.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 399 from 453 to get 54.
Append the next digit (1) from the dividend to 54 and continue with: 541 / 57

Advancing to step 4:
If we divide 541 by 57, we get 9 and a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 79.0
If we take 513 away from 541, we end up with 28.
Append the next digit (7) from the dividend to 28 and continue with: 287 / 57

Advancing to step 5:
If we divide 287 by 57, we get 5 and a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 795.0
The remainder is 2 after subtracting 285 from 287.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 57

Advancing to step 6:
The number 57 fits into 22 0 times, leaving a remainder of 22.
The next digit of our result is 0. 
Result so far: 7950.0
Subtracting 0 from 22 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 7:
220 divided by 57 is 3 with a remainder of 49.
Use 3 as the next digit of our solution. 
Result so far: 7950.3
The remainder is 49 after subtracting 171 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 8:
57 goes into 490 8 times with a remainder of 34.
The next digit of our result is 8. 
Result so far: 7950.38
Deduct 456 from 490 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 9:
57 can be fit into 340 5 times, resulting in a remainder of 55.
The next digit of our result is 5. 
Result so far: 7950.385
Subtract 285 from 340 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 10:
If we divide 550 by 57, we get 9 and a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 7950.3859
Subtract 513 from 550 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 11:
57 goes into 370 6 times with a remainder of 28.
The next digit of our result is 6. 
Result so far: 7950.38596
The remainder is 28 after subtracting 342 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 12:
57 goes into 280 4 times with a remainder of 52.
The next digit of our result is 4. 
Result so far: 7950.385964
Subtract 228 from 280 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 13:
520 divided by 57 is 9 with a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 7950.3859649
Deduct 513 from 520 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 14:
70 divided by 57 is 1 with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 7950.38596491
Subtract 57 from 70 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 7950.38596491 and a remainder of 1.3e-08.