We're dividing 31545823 by 857 
The aim is to understand the frequency of 857 in 31545823.

Step 1:
857 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 857

Advancing to step 2:
857 goes into 31 0 times with a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Fetch the next digit (5) from the dividend, attach it to 31 and continue: 315 / 857

Moving on to step 3:
The number 857 fits into 315 0 times, leaving a remainder of 315.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 315 leaves us with 315.
Bring next digit (4) of the dividend behind the 315 and repeat the process: 3154 / 857

Step 4:
When dividing 3154 by 857, we get 3 with a remainder of 583.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 2571 from 3154 to get 583.
Grab the next digit (5) from the dividend, add it to 583, then carry on: 5835 / 857

Step 5:
When dividing 5835 by 857, we get 6 with a remainder of 693.
Use 6 as the next digit of our solution. 
Result so far: 36.0
Subtract 5142 from 5835 to get 693.
Append the next digit (8) from the dividend to 693 and continue with: 6938 / 857

Step 6:
6938 divided by 857 is 8 with a remainder of 82.
The next digit of our result is 8. 
Result so far: 368.0
Deduct 6856 from 6938 and we're left with 82.
Grab the next digit (2) from the dividend, add it to 82, then carry on: 822 / 857

Step 7:
857 can be fit into 822 0 times, resulting in a remainder of 822.
Put 0 as the next digit of the answer. 
Result so far: 3680.0
If we take 0 away from 822, we end up with 822.
Grab the next digit (3) from the dividend, add it to 822, then carry on: 8223 / 857

Step 8:
857 goes into 8223 9 times with a remainder of 510.
Record the quotient 9 as the next digit in the result. 
Result so far: 36809.0
The remainder is 510 after subtracting 7713 from 8223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 9:
5100 divided by 857 is 5 with a remainder of 815.
The number 5 becomes the next digit in our result. 
Result so far: 36809.5
Subtract 4285 from 5100 to get 815.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8150, and continue the process.

Moving on to step 10:
The number 857 fits into 8150 9 times, leaving a remainder of 437.
The number 9 becomes the next digit in our result. 
Result so far: 36809.59
Subtract 7713 from 8150 to get 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Moving on to step 11:
4370 divided by 857 is 5 with a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 36809.595
Subtract 4285 from 4370 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

On to step 12:
When dividing 850 by 857, we get 0 with a remainder of 850.
Record the quotient 0 as the next digit in the result. 
Result so far: 36809.595
If we subtract 0 from 850, we get 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

Going ahead to step 13:
The number 857 fits into 8500 9 times, leaving a remainder of 787.
The next digit of our result is 9. 
Result so far: 36809.59509
Subtract 7713 from 8500 to get 787.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7870, and continue the process.

Moving on to step 14:
If we divide 7870 by 857, we get 9 and a remainder of 157.
Put 9 as the next digit of the answer. 
Result so far: 36809.595099
Subtract 7713 from 7870 to get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

After the division, we end up with 36809.595099 and a remainder of 1.57e-05.