728458 ÷ 85 
The aim is to understand the frequency of 85 in 728458.

Going ahead to step 1:
When dividing 7 by 85, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 85

Going ahead to step 2:
85 goes into 72 0 times with a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Fetch the next digit (8) from the dividend, attach it to 72 and continue: 728 / 85

On to step 3:
85 goes into 728 8 times with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 680 from 728, we get 48.
Include the next digit (4) from the dividend after 48, then repeat: 484 / 85

Let's proceed to step 4:
If we divide 484 by 85, we get 5 and a remainder of 59.
Write down 5 as next digit of the result. 
Result so far: 85.0
If we take 425 away from 484, we end up with 59.
Include the next digit (5) from the dividend after 59, then repeat: 595 / 85

Going ahead to step 5:
85 goes into 595 7 times with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 857.0
If we subtract 595 from 595, we get 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 85

Going ahead to step 6:
If we divide 8 by 85, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 8570.0
If we subtract 0 from 8, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 7:
85 can be fit into 80 0 times, resulting in a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 8570.0
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 8:
When dividing 800 by 85, we get 9 with a remainder of 35.
Write down 9 as next digit of the result. 
Result so far: 8570.09
Subtract 765 from 800 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 9:
The number 85 fits into 350 4 times, leaving a remainder of 10.
The next digit of our result is 4. 
Result so far: 8570.094
The remainder is 10 after subtracting 340 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
When dividing 100 by 85, we get 1 with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 8570.0941
Subtracting 85 from 100 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 11:
The number 85 fits into 150 1 times, leaving a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 8570.09411
If we take 85 away from 150, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Our division results in 8570.09411 with a remaining 6.5e-05.