521977 divided by 57 
The aim is to understand the frequency of 57 in 521977.

On to step 1:
The number 57 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 57

Going ahead to step 2:
52 divided by 57 is 0 with a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Take the next digit (1) from the dividend and append it to 52, then repeat: 521 / 57

Moving on to step 3:
When dividing 521 by 57, we get 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 513 away from 521, we end up with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 57

On to step 4:
57 goes into 89 1 times with a remainder of 32.
The next digit of our result is 1. 
Result so far: 91.0
Deduct 57 from 89 and we're left with 32.
Append the next digit (7) from the dividend to 32 and continue with: 327 / 57

Let's proceed to step 5:
When dividing 327 by 57, we get 5 with a remainder of 42.
The number 5 becomes the next digit in our result. 
Result so far: 915.0
Subtract 285 from 327 to get 42.
Take the next digit (7) from the dividend and append it to 42, then repeat: 427 / 57

Advancing to step 6:
427 divided by 57 is 7 with a remainder of 28.
Write down 7 as next digit of the result. 
Result so far: 9157.0
If we subtract 399 from 427, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 7:
The number 57 fits into 280 4 times, leaving a remainder of 52.
Use 4 as the next digit of our solution. 
Result so far: 9157.4
Subtracting 228 from 280 leaves us 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.

On to step 8:
When dividing 520 by 57, we get 9 with a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 9157.49
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.

Going ahead to step 9:
If we divide 70 by 57, we get 1 and a remainder of 13.
The next digit of our result is 1. 
Result so far: 9157.491
Deduct 57 from 70 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 10:
If we divide 130 by 57, we get 2 and a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 9157.4912
If we take 114 away from 130, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
When dividing 160 by 57, we get 2 with a remainder of 46.
The next digit of our result is 2. 
Result so far: 9157.49122
If we subtract 114 from 160, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The final result is 9157.49122 with a remainder of 4.6e-05.