We divide 397752 by 57
The aim is to understand the frequency of 57 in 397752.

Advancing to step 1:
If we divide 3 by 57, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 57

Moving on to step 2:
39 divided by 57 is 0 with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Append the next digit (7) from the dividend to 39 and continue with: 397 / 57

Going ahead to step 3:
If we divide 397 by 57, we get 6 and a remainder of 55.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 342 from 397 and we're left with 55.
Take the next digit (7) from the dividend and append it to 55, then repeat: 557 / 57

Let's proceed to step 4:
When dividing 557 by 57, we get 9 with a remainder of 44.
The next digit of our result is 9. 
Result so far: 69.0
If we subtract 513 from 557, we get 44.
Take the next digit (5) from the dividend and append it to 44, then repeat: 445 / 57

Moving on to step 5:
When dividing 445 by 57, we get 7 with a remainder of 46.
Write down 7 as next digit of the result. 
Result so far: 697.0
If we take 399 away from 445, we end up with 46.
Take the next digit (2) from the dividend and append it to 46, then repeat: 462 / 57

Step 6:
57 goes into 462 8 times with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 6978.0
The remainder is 6 after subtracting 456 from 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
If we divide 60 by 57, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 6978.1
Deduct 57 from 60 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
The number 57 fits into 30 0 times, leaving a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 6978.1
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
57 goes into 300 5 times with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 6978.105
Subtract 285 from 300 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 10:
The number 57 fits into 150 2 times, leaving a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 6978.1052
If we subtract 114 from 150, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 11:
If we divide 360 by 57, we get 6 and a remainder of 18.
The next digit of our result is 6. 
Result so far: 6978.10526
Subtracting 342 from 360 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 12:
The number 57 fits into 180 3 times, leaving a remainder of 9.
The next digit of our result is 3. 
Result so far: 6978.105263
The remainder is 9 after subtracting 171 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 13:
57 can be fit into 90 1 times, resulting in a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 6978.1052631
Deduct 57 from 90 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 14:
57 can be fit into 330 5 times, resulting in a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 6978.10526315
The remainder is 45 after subtracting 285 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

The final result is 6978.10526315 with a remainder of 4.5e-08.