We look at the division of 86603085 by 874 
The aim is to understand the frequency of 874 in 86603085.

On to step 1:
874 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 874

Going ahead to step 2:
When dividing 86 by 874, we get 0 with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Fetch the next digit (6) from the dividend, attach it to 86 and continue: 866 / 874

Step 3:
When dividing 866 by 874, we get 0 with a remainder of 866.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 866 to get 866.
Include the next digit (0) from the dividend after 866, then repeat: 8660 / 874

On to step 4:
874 goes into 8660 9 times with a remainder of 794.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 794 after subtracting 7866 from 8660.
Include the next digit (3) from the dividend after 794, then repeat: 7943 / 874

Going ahead to step 5:
874 goes into 7943 9 times with a remainder of 77.
Use 9 as the next digit of our solution. 
Result so far: 99.0
The remainder is 77 after subtracting 7866 from 7943.
Grab the next digit (0) from the dividend, add it to 77, then carry on: 770 / 874

On to step 6:
874 can be fit into 770 0 times, resulting in a remainder of 770.
The next digit of our result is 0. 
Result so far: 990.0
Deduct 0 from 770 and we're left with 770.
Take the next digit (8) from the dividend and append it to 770, then repeat: 7708 / 874

Let's proceed to step 7:
The number 874 fits into 7708 8 times, leaving a remainder of 716.
The number 8 becomes the next digit in our result. 
Result so far: 9908.0
If we take 6992 away from 7708, we end up with 716.
Fetch the next digit (5) from the dividend, attach it to 716 and continue: 7165 / 874

Let's proceed to step 8:
The number 874 fits into 7165 8 times, leaving a remainder of 173.
Write down 8 as next digit of the result. 
Result so far: 99088.0
The remainder is 173 after subtracting 6992 from 7165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Going ahead to step 9:
When dividing 1730 by 874, we get 1 with a remainder of 856.
The number 1 becomes the next digit in our result. 
Result so far: 99088.1
If we subtract 874 from 1730, we get 856.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8560, and continue the process.

Advancing to step 10:
The number 874 fits into 8560 9 times, leaving a remainder of 694.
The next digit of our result is 9. 
Result so far: 99088.19
Deduct 7866 from 8560 and we're left with 694.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6940, and continue the process.

Moving on to step 11:
874 goes into 6940 7 times with a remainder of 822.
The number 7 becomes the next digit in our result. 
Result so far: 99088.197
Subtracting 6118 from 6940 leaves us with 822.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8220, and continue the process.

On to step 12:
874 goes into 8220 9 times with a remainder of 354.
The number 9 becomes the next digit in our result. 
Result so far: 99088.1979
If we take 7866 away from 8220, we end up with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Advancing to step 13:
3540 divided by 874 is 4 with a remainder of 44.
Write down 4 as next digit of the result. 
Result so far: 99088.19794
Subtract 3496 from 3540 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 14:
The number 874 fits into 440 0 times, leaving a remainder of 440.
The number 0 becomes the next digit in our result. 
Result so far: 99088.19794
Deduct 0 from 440 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Moving on to step 15:
When dividing 4400 by 874, we get 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 99088.1979405
Deduct 4370 from 4400 and we're left 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.

Going ahead to step 16:
When dividing 300 by 874, we get 0 with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 99088.1979405
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The quotient of the division is 99088.1979405, and the remainder is 3e-07.