We look at the division of 912673 by 86 
The aim is to understand the frequency of 86 in 912673.

Going ahead to step 1:
When dividing 9 by 86, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 86

Advancing to step 2:
The number 86 fits into 91 1 times, leaving a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 86 from 91 to get 5.
Grab the next digit (2) from the dividend, add it to 5, then carry on: 52 / 86

Step 3:
86 can be fit into 52 0 times, resulting in a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 52 after subtracting 0 from 52.
Append the next digit (6) from the dividend to 52 and continue with: 526 / 86

Advancing to step 4:
The number 86 fits into 526 6 times, leaving a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 106.0
If we take 516 away from 526, we end up with 10.
Fetch the next digit (7) from the dividend, attach it to 10 and continue: 107 / 86

Step 5:
When dividing 107 by 86, we get 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 1061.0
Subtracting 86 from 107 leaves us with 21.
Bring next digit (3) of the dividend behind the 21 and repeat the process: 213 / 86

On to step 6:
If we divide 213 by 86, we get 2 and a remainder of 41.
The number 2 becomes the next digit in our result. 
Result so far: 10612.0
Subtracting 172 from 213 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 7:
When dividing 410 by 86, we get 4 with a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 10612.4
Subtract 344 from 410 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 8:
86 can be fit into 660 7 times, resulting in a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 10612.47
The remainder is 58 after subtracting 602 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 9:
The number 86 fits into 580 6 times, leaving a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 10612.476
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.

On to step 10:
86 can be fit into 640 7 times, resulting in a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 10612.4767
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.

Let's proceed to step 11:
The number 86 fits into 380 4 times, leaving a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 10612.47674
Deduct 344 from 380 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
86 goes into 360 4 times with a remainder of 16.
The next digit of our result is 4. 
Result so far: 10612.476744
If we take 344 away from 360, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 10612.476744 and a remainder of 1.6e-06.