Let's divide 8617868 by 850
The aim is to understand the frequency of 850 in 8617868.

On to step 1:
When dividing 8 by 850, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 850

Advancing to step 2:
When dividing 86 by 850, we get 0 with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Include the next digit (1) from the dividend after 86, then repeat: 861 / 850

Going ahead to step 3:
If we divide 861 by 850, we get 1 and a remainder of 11.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 850 from 861 and we're left with 11.
Include the next digit (7) from the dividend after 11, then repeat: 117 / 850

Let's proceed to step 4:
The number 850 fits into 117 0 times, leaving a remainder of 117.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 117 after subtracting 0 from 117.
Fetch the next digit (8) from the dividend, attach it to 117 and continue: 1178 / 850

Let's proceed to step 5:
When dividing 1178 by 850, we get 1 with a remainder of 328.
The number 1 becomes the next digit in our result. 
Result so far: 101.0
Deduct 850 from 1178 and we're left with 328.
Append the next digit (6) from the dividend to 328 and continue with: 3286 / 850

Going ahead to step 6:
If we divide 3286 by 850, we get 3 and a remainder of 736.
The number 3 becomes the next digit in our result. 
Result so far: 1013.0
If we subtract 2550 from 3286, we get 736.
Take the next digit (8) from the dividend and append it to 736, then repeat: 7368 / 850

Moving on to step 7:
The number 850 fits into 7368 8 times, leaving a remainder of 568.
Record the quotient 8 as the next digit in the result. 
Result so far: 10138.0
Deduct 6800 from 7368 and we're left with 568.
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 8:
850 can be fit into 5680 6 times, resulting in a remainder of 580.
Write down 6 as next digit of the result. 
Result so far: 10138.6
Subtract 5100 from 5680 to get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 9:
The number 850 fits into 5800 6 times, leaving a remainder of 700.
Record the quotient 6 as the next digit in the result. 
Result so far: 10138.66
If we subtract 5100 from 5800, we get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The quotient of the division is 10138.66, and the remainder is 0.7.