We look at the division of 56872513 by 57 
The aim is to understand the frequency of 57 in 56872513.

Step 1:
If we divide 5 by 57, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 57

Step 2:
56 divided by 57 is 0 with a remainder of 56.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 56 and we're left with 56.
Fetch the next digit (8) from the dividend, attach it to 56 and continue: 568 / 57

On to step 3:
If we divide 568 by 57, we get 9 and a remainder of 55.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 513 from 568 to get 55.
Grab the next digit (7) from the dividend, add it to 55, then carry on: 557 / 57

Step 4:
57 can be fit into 557 9 times, resulting in a remainder of 44.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
Subtracting 513 from 557 leaves us with 44.
Fetch the next digit (2) from the dividend, attach it to 44 and continue: 442 / 57

Let's proceed to step 5:
When dividing 442 by 57, we get 7 with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 997.0
Deduct 399 from 442 and we're left with 43.
Bring next digit (5) of the dividend behind the 43 and repeat the process: 435 / 57

Let's proceed to step 6:
The number 57 fits into 435 7 times, leaving a remainder of 36.
Write down 7 as next digit of the result. 
Result so far: 9977.0
The remainder is 36 after subtracting 399 from 435.
Include the next digit (1) from the dividend after 36, then repeat: 361 / 57

Advancing to step 7:
57 goes into 361 6 times with a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 99776.0
Deduct 342 from 361 and we're left with 19.
Append the next digit (3) from the dividend to 19 and continue with: 193 / 57

Going ahead to step 8:
If we divide 193 by 57, we get 3 and a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 997763.0
Deduct 171 from 193 and we're left 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.

Going ahead to step 9:
The number 57 fits into 220 3 times, leaving a remainder of 49.
The next digit of our result is 3. 
Result so far: 997763.3
If we take 171 away from 220, we end up with 49.
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 10:
490 divided by 57 is 8 with a remainder of 34.
Use 8 as the next digit of our solution. 
Result so far: 997763.38
Subtracting 456 from 490 leaves us 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.

On to step 11:
57 goes into 340 5 times with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 997763.385
Subtracting 285 from 340 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 12:
The number 57 fits into 550 9 times, leaving a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 997763.3859
The remainder is 37 after subtracting 513 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 13:
When dividing 370 by 57, we get 6 with a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 997763.38596
Deduct 342 from 370 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
When dividing 280 by 57, we get 4 with a remainder of 52.
The number 4 becomes the next digit in our result. 
Result so far: 997763.385964
If we take 228 away from 280, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 15:
When dividing 520 by 57, we get 9 with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 997763.3859649
The remainder is 7 after subtracting 513 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 16:
57 can be fit into 70 1 times, resulting in a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 997763.38596491
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.

The quotient of the division is 997763.38596491, and the remainder is 1.3e-08.