We're dividing 57452994 by 857 
The aim is to understand the frequency of 857 in 57452994.

Step 1:
5 divided by 857 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 857

Going ahead to step 2:
If we divide 57 by 857, we get 0 and a remainder of 57.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 57, we get 57.
Append the next digit (4) from the dividend to 57 and continue with: 574 / 857

On to step 3:
If we divide 574 by 857, we get 0 and a remainder of 574.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 574, we get 574.
Append the next digit (5) from the dividend to 574 and continue with: 5745 / 857

Going ahead to step 4:
If we divide 5745 by 857, we get 6 and a remainder of 603.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
The remainder is 603 after subtracting 5142 from 5745.
Append the next digit (2) from the dividend to 603 and continue with: 6032 / 857

On to step 5:
857 can be fit into 6032 7 times, resulting in a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 67.0
If we take 5999 away from 6032, we end up with 33.
Take the next digit (9) from the dividend and append it to 33, then repeat: 339 / 857

Step 6:
339 divided by 857 is 0 with a remainder of 339.
Use 0 as the next digit of our solution. 
Result so far: 670.0
The remainder is 339 after subtracting 0 from 339.
Include the next digit (9) from the dividend after 339, then repeat: 3399 / 857

Let's proceed to step 7:
3399 divided by 857 is 3 with a remainder of 828.
Record the quotient 3 as the next digit in the result. 
Result so far: 6703.0
Subtract 2571 from 3399 to get 828.
Include the next digit (4) from the dividend after 828, then repeat: 8284 / 857

Let's proceed to step 8:
8284 divided by 857 is 9 with a remainder of 571.
Write down 9 as next digit of the result. 
Result so far: 67039.0
If we subtract 7713 from 8284, we get 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

Going ahead to step 9:
If we divide 5710 by 857, we get 6 and a remainder of 568.
The next digit of our result is 6. 
Result so far: 67039.6
The remainder is 568 after subtracting 5142 from 5710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

Going ahead to step 10:
857 can be fit into 5680 6 times, resulting in a remainder of 538.
Record the quotient 6 as the next digit in the result. 
Result so far: 67039.66
If we subtract 5142 from 5680, we get 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

The final result is 67039.66 with a remainder of 0.538.