853228 ÷ 86 
The aim is to understand the frequency of 86 in 853228.

On to step 1:
86 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 86

Step 2:
86 can be fit into 85 0 times, resulting in a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Grab the next digit (3) from the dividend, add it to 85, then carry on: 853 / 86

Going ahead to step 3:
The number 86 fits into 853 9 times, leaving a remainder of 79.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 774 from 853 and we're left with 79.
Take the next digit (2) from the dividend and append it to 79, then repeat: 792 / 86

Going ahead to step 4:
If we divide 792 by 86, we get 9 and a remainder of 18.
The next digit of our result is 9. 
Result so far: 99.0
Subtracting 774 from 792 leaves us with 18.
Take the next digit (2) from the dividend and append it to 18, then repeat: 182 / 86

Step 5:
86 goes into 182 2 times with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 992.0
Subtracting 172 from 182 leaves us with 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 86

Going ahead to step 6:
If we divide 108 by 86, we get 1 and a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 9921.0
Deduct 86 from 108 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
220 divided by 86 is 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 9921.2
Subtracting 172 from 220 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 8:
86 goes into 480 5 times with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 9921.25
If we subtract 430 from 480, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
If we divide 500 by 86, we get 5 and a remainder of 70.
The next digit of our result is 5. 
Result so far: 9921.255
If we take 430 away from 500, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The quotient of the division is 9921.255, and the remainder is 0.007.