We look at the division of 86707 by 86 
The aim is to understand the frequency of 86 in 86707.

Advancing to step 1:
86 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 86

On to step 2:
If we divide 86 by 86, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 86 away from 86, we end up with 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 86

Advancing to step 3:
86 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 86

Let's proceed to step 4:
If we divide 70 by 86, we get 0 and a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 100.0
Deduct 0 from 70 and we're left with 70.
Take the next digit (7) from the dividend and append it to 70, then repeat: 707 / 86

Step 5:
707 divided by 86 is 8 with a remainder of 19.
Record the quotient 8 as the next digit in the result. 
Result so far: 1008.0
If we take 688 away from 707, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 6:
The number 86 fits into 190 2 times, leaving a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 1008.2
The remainder is 18 after subtracting 172 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 7:
If we divide 180 by 86, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 1008.22
If we take 172 away from 180, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 1008.22 and a remainder of 0.008.