831240 ÷ 57 
The aim is to understand the frequency of 57 in 831240.

Let's proceed to step 1:
If we divide 8 by 57, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 57

Step 2:
When dividing 83 by 57, we get 1 with a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 57 from 83, we get 26.
Take the next digit (1) from the dividend and append it to 26, then repeat: 261 / 57

Let's proceed to step 3:
57 goes into 261 4 times with a remainder of 33.
Use 4 as the next digit of our solution. 
Result so far: 14.0
The remainder is 33 after subtracting 228 from 261.
Grab the next digit (2) from the dividend, add it to 33, then carry on: 332 / 57

Step 4:
57 goes into 332 5 times with a remainder of 47.
The number 5 becomes the next digit in our result. 
Result so far: 145.0
Deduct 285 from 332 and we're left with 47.
Bring next digit (4) of the dividend behind the 47 and repeat the process: 474 / 57

On to step 5:
If we divide 474 by 57, we get 8 and a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 1458.0
If we subtract 456 from 474, we get 18.
Bring next digit (0) of the dividend behind the 18 and repeat the process: 180 / 57

Advancing to step 6:
The number 57 fits into 180 3 times, leaving a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 14583.0
If we subtract 171 from 180, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
The number 57 fits into 90 1 times, leaving a remainder of 33.
Put 1 as the next digit of the answer. 
Result so far: 14583.1
The remainder is 33 after subtracting 57 from 90.
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 8:
The number 57 fits into 330 5 times, leaving a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 14583.15
If we subtract 285 from 330, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 9:
The number 57 fits into 450 7 times, leaving a remainder of 51.
Write down 7 as next digit of the result. 
Result so far: 14583.157
If we subtract 399 from 450, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 10:
57 goes into 510 8 times with a remainder of 54.
The number 8 becomes the next digit in our result. 
Result so far: 14583.1578
If we subtract 456 from 510, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 11:
540 divided by 57 is 9 with a remainder of 27.
Put 9 as the next digit of the answer. 
Result so far: 14583.15789
Subtracting 513 from 540 leaves us 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.

Going ahead to step 12:
57 can be fit into 270 4 times, resulting in a remainder of 42.
Write down 4 as next digit of the result. 
Result so far: 14583.157894
If we take 228 away from 270, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 13:
420 divided by 57 is 7 with a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 14583.1578947
If we subtract 399 from 420, we 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.

On to step 14:
57 goes into 210 3 times with a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 14583.15789473
Subtracting 171 from 210 leaves us 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.

The quotient of the division is 14583.15789473, and the remainder is 3.9e-08.