We look at the division of 984641 by 57 
The aim is to understand the frequency of 57 in 984641.

On to step 1:
When dividing 9 by 57, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 57

Step 2:
57 can be fit into 98 1 times, resulting in a remainder of 41.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 41 after subtracting 57 from 98.
Bring next digit (4) of the dividend behind the 41 and repeat the process: 414 / 57

On to step 3:
When dividing 414 by 57, we get 7 with a remainder of 15.
Write down 7 as next digit of the result. 
Result so far: 17.0
Deduct 399 from 414 and we're left with 15.
Bring next digit (6) of the dividend behind the 15 and repeat the process: 156 / 57

Moving on to step 4:
57 goes into 156 2 times with a remainder of 42.
Write down 2 as next digit of the result. 
Result so far: 172.0
Subtract 114 from 156 to get 42.
Bring next digit (4) of the dividend behind the 42 and repeat the process: 424 / 57

Going ahead to step 5:
If we divide 424 by 57, we get 7 and a remainder of 25.
Put 7 as the next digit of the answer. 
Result so far: 1727.0
Subtracting 399 from 424 leaves us with 25.
Append the next digit (1) from the dividend to 25 and continue with: 251 / 57

Advancing to step 6:
251 divided by 57 is 4 with a remainder of 23.
Put 4 as the next digit of the answer. 
Result so far: 17274.0
The remainder is 23 after subtracting 228 from 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
If we divide 230 by 57, we get 4 and a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 17274.4
The remainder is 2 after subtracting 228 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
20 divided by 57 is 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 17274.4
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
When dividing 200 by 57, we get 3 with a remainder of 29.
The number 3 becomes the next digit in our result. 
Result so far: 17274.403
If we subtract 171 from 200, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 10:
If we divide 290 by 57, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 17274.4035
Subtract 285 from 290 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 11:
When dividing 50 by 57, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 17274.4035
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 12:
The number 57 fits into 500 8 times, leaving a remainder of 44.
The next digit of our result is 8. 
Result so far: 17274.403508
Subtract 456 from 500 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 13:
57 goes into 440 7 times with a remainder of 41.
Write down 7 as next digit of the result. 
Result so far: 17274.4035087
Deduct 399 from 440 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 14:
57 goes into 410 7 times with a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 17274.40350877
If we subtract 399 from 410, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

After the division, we end up with 17274.40350877 and a remainder of 1.1e-08.