We look at the division of 798755 by 86 
The aim is to understand the frequency of 86 in 798755.

On to step 1:
The number 86 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 86

Let's proceed to step 2:
If we divide 79 by 86, we get 0 and a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Append the next digit (8) from the dividend to 79 and continue with: 798 / 86

Moving on to step 3:
The number 86 fits into 798 9 times, leaving a remainder of 24.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 774 from 798, we get 24.
Bring next digit (7) of the dividend behind the 24 and repeat the process: 247 / 86

Let's proceed to step 4:
86 goes into 247 2 times with a remainder of 75.
Use 2 as the next digit of our solution. 
Result so far: 92.0
Subtract 172 from 247 to get 75.
Fetch the next digit (5) from the dividend, attach it to 75 and continue: 755 / 86

Step 5:
86 goes into 755 8 times with a remainder of 67.
The number 8 becomes the next digit in our result. 
Result so far: 928.0
Deduct 688 from 755 and we're left with 67.
Fetch the next digit (5) from the dividend, attach it to 67 and continue: 675 / 86

Step 6:
86 can be fit into 675 7 times, resulting in a remainder of 73.
Record the quotient 7 as the next digit in the result. 
Result so far: 9287.0
If we subtract 602 from 675, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 7:
730 divided by 86 is 8 with a remainder of 42.
The next digit of our result is 8. 
Result so far: 9287.8
If we take 688 away from 730, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 8:
86 can be fit into 420 4 times, resulting in a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 9287.84
Subtract 344 from 420 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 9:
86 goes into 760 8 times with a remainder of 72.
The next digit of our result is 8. 
Result so far: 9287.848
Deduct 688 from 760 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 10:
The number 86 fits into 720 8 times, leaving a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 9287.8488
If we subtract 688 from 720, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 9287.8488, and the remainder is 0.00032.