We look at the division of 763415 by 57 
The aim is to understand the frequency of 57 in 763415.

Moving on to step 1:
57 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 57

On to step 2:
If we divide 76 by 57, we get 1 and a remainder of 19.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 57 from 76, we get 19.
Grab the next digit (3) from the dividend, add it to 19, then carry on: 193 / 57

Going ahead to step 3:
The number 57 fits into 193 3 times, leaving a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 171 from 193, we get 22.
Grab the next digit (4) from the dividend, add it to 22, then carry on: 224 / 57

Let's proceed to step 4:
When dividing 224 by 57, we get 3 with a remainder of 53.
Use 3 as the next digit of our solution. 
Result so far: 133.0
Subtracting 171 from 224 leaves us with 53.
Append the next digit (1) from the dividend to 53 and continue with: 531 / 57

Going ahead to step 5:
531 divided by 57 is 9 with a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 1339.0
Subtracting 513 from 531 leaves us with 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 57

Let's proceed to step 6:
57 goes into 185 3 times with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 13393.0
The remainder is 14 after subtracting 171 from 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
57 goes into 140 2 times with a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 13393.2
Deduct 114 from 140 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 8:
The number 57 fits into 260 4 times, leaving a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 13393.24
Subtracting 228 from 260 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 9:
If we divide 320 by 57, we get 5 and a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 13393.245
Deduct 285 from 320 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 10:
The number 57 fits into 350 6 times, leaving a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 13393.2456
Deduct 342 from 350 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
57 goes into 80 1 times with a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 13393.24561
If we take 57 away from 80, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 12:
The number 57 fits into 230 4 times, leaving a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 13393.245614
If we take 228 away from 230, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 13:
The number 57 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 13393.245614
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.

On to step 14:
57 can be fit into 200 3 times, resulting in a remainder of 29.
Use 3 as the next digit of our solution. 
Result so far: 13393.24561403
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.

The final outcome is 13393.24561403, with a leftover of 2.9e-08.