Let's divide 966966 by 86
The aim is to understand the frequency of 86 in 966966.

Going ahead to step 1:
86 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 86

On to step 2:
If we divide 96 by 86, we get 1 and a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 10 after subtracting 86 from 96.
Take the next digit (6) from the dividend and append it to 10, then repeat: 106 / 86

Moving on to step 3:
The number 86 fits into 106 1 times, leaving a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 86 from 106, we get 20.
Append the next digit (9) from the dividend to 20 and continue with: 209 / 86

On to step 4:
86 goes into 209 2 times with a remainder of 37.
Use 2 as the next digit of our solution. 
Result so far: 112.0
If we take 172 away from 209, we end up with 37.
Include the next digit (6) from the dividend after 37, then repeat: 376 / 86

Going ahead to step 5:
86 goes into 376 4 times with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 1124.0
Deduct 344 from 376 and we're left with 32.
Include the next digit (6) from the dividend after 32, then repeat: 326 / 86

Going ahead to step 6:
326 divided by 86 is 3 with a remainder of 68.
Write down 3 as next digit of the result. 
Result so far: 11243.0
Subtracting 258 from 326 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 7:
If we divide 680 by 86, we get 7 and a remainder of 78.
The number 7 becomes the next digit in our result. 
Result so far: 11243.7
Subtracting 602 from 680 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 8:
86 can be fit into 780 9 times, resulting in a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 11243.79
If we subtract 774 from 780, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 9:
When dividing 60 by 86, we get 0 with a remainder of 60.
The next digit of our result is 0. 
Result so far: 11243.79
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 10:
When dividing 600 by 86, we get 6 with a remainder of 84.
Use 6 as the next digit of our solution. 
Result so far: 11243.7906
If we take 516 away from 600, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 11:
840 divided by 86 is 9 with a remainder of 66.
Record the quotient 9 as the next digit in the result. 
Result so far: 11243.79069
Deduct 774 from 840 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 12:
If we divide 660 by 86, we get 7 and a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 11243.790697
If we take 602 away from 660, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 13:
If we divide 580 by 86, we get 6 and a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 11243.7906976
The remainder is 64 after subtracting 516 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 14:
86 goes into 640 7 times with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 11243.79069767
If we subtract 602 from 640, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final outcome is 11243.79069767, with a leftover of 3.8e-08.