86688307 ÷ 931 
The aim is to understand the frequency of 931 in 86688307.

Going ahead to step 1:
931 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 931

Advancing to step 2:
The number 931 fits into 86 0 times, leaving a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Include the next digit (6) from the dividend after 86, then repeat: 866 / 931

On to step 3:
The number 931 fits into 866 0 times, leaving a remainder of 866.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 866, we end up with 866.
Bring next digit (8) of the dividend behind the 866 and repeat the process: 8668 / 931

Moving on to step 4:
When dividing 8668 by 931, we get 9 with a remainder of 289.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
The remainder is 289 after subtracting 8379 from 8668.
Bring next digit (8) of the dividend behind the 289 and repeat the process: 2898 / 931

Advancing to step 5:
If we divide 2898 by 931, we get 3 and a remainder of 105.
Put 3 as the next digit of the answer. 
Result so far: 93.0
Deduct 2793 from 2898 and we're left with 105.
Grab the next digit (3) from the dividend, add it to 105, then carry on: 1053 / 931

Step 6:
The number 931 fits into 1053 1 times, leaving a remainder of 122.
Use 1 as the next digit of our solution. 
Result so far: 931.0
If we take 931 away from 1053, we end up with 122.
Take the next digit (0) from the dividend and append it to 122, then repeat: 1220 / 931

Going ahead to step 7:
1220 divided by 931 is 1 with a remainder of 289.
Use 1 as the next digit of our solution. 
Result so far: 9311.0
Subtracting 931 from 1220 leaves us with 289.
Include the next digit (7) from the dividend after 289, then repeat: 2897 / 931

Advancing to step 8:
931 goes into 2897 3 times with a remainder of 104.
Put 3 as the next digit of the answer. 
Result so far: 93113.0
Deduct 2793 from 2897 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

On to step 9:
When dividing 1040 by 931, we get 1 with a remainder of 109.
Use 1 as the next digit of our solution. 
Result so far: 93113.1
If we subtract 931 from 1040, we get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Going ahead to step 10:
When dividing 1090 by 931, we get 1 with a remainder of 159.
The number 1 becomes the next digit in our result. 
Result so far: 93113.11
Subtracting 931 from 1090 leaves us with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

In conclusion, the division gives 93113.11 with a balance of 0.159.