We look at the division of 85608 by 57 
The aim is to understand the frequency of 57 in 85608.

Moving on to step 1:
When dividing 8 by 57, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 57

Moving on to step 2:
85 divided by 57 is 1 with a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 57 from 85 leaves us with 28.
Take the next digit (6) from the dividend and append it to 28, then repeat: 286 / 57

Going ahead to step 3:
57 can be fit into 286 5 times, resulting in a remainder of 1.
The next digit of our result is 5. 
Result so far: 15.0
If we take 285 away from 286, we end up with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 57

Step 4:
57 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 150.0
Subtract 0 from 10 to get 10.
Include the next digit (8) from the dividend after 10, then repeat: 108 / 57

Moving on to step 5:
57 goes into 108 1 times with a remainder of 51.
The next digit of our result is 1. 
Result so far: 1501.0
Subtracting 57 from 108 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 6:
When dividing 510 by 57, we get 8 with a remainder of 54.
Record the quotient 8 as the next digit in the result. 
Result so far: 1501.8
Subtracting 456 from 510 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 7:
540 divided by 57 is 9 with a remainder of 27.
Record the quotient 9 as the next digit in the result. 
Result so far: 1501.89
Deduct 513 from 540 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 8:
270 divided by 57 is 4 with a remainder of 42.
Write down 4 as next digit of the result. 
Result so far: 1501.894
If we subtract 228 from 270, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 9:
57 can be fit into 420 7 times, resulting in a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 1501.8947
Subtract 399 from 420 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 10:
If we divide 210 by 57, we get 3 and a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 1501.89473
Deduct 171 from 210 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 11:
The number 57 fits into 390 6 times, leaving a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 1501.894736
Subtracting 342 from 390 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 12:
When dividing 480 by 57, we get 8 with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 1501.8947368
The remainder is 24 after subtracting 456 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 13:
240 divided by 57 is 4 with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 1501.89473684
If we subtract 228 from 240, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 1501.89473684 and a remainder of 1.2e-08.