We look at the division of 105270 by 86 
The aim is to understand the frequency of 86 in 105270.

Advancing to step 1:
The number 86 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 86

On to step 2:
The number 86 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 86

Advancing to step 3:
86 goes into 105 1 times with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 19 after subtracting 86 from 105.
Grab the next digit (2) from the dividend, add it to 19, then carry on: 192 / 86

Moving on to step 4:
If we divide 192 by 86, we get 2 and a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we take 172 away from 192, we end up with 20.
Grab the next digit (7) from the dividend, add it to 20, then carry on: 207 / 86

On to step 5:
86 can be fit into 207 2 times, resulting in a remainder of 35.
Record the quotient 2 as the next digit in the result. 
Result so far: 122.0
The remainder is 35 after subtracting 172 from 207.
Include the next digit (0) from the dividend after 35, then repeat: 350 / 86

Step 6:
When dividing 350 by 86, we get 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 1224.0
Subtracting 344 from 350 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
When dividing 60 by 86, we get 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 1224.0
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 8:
When dividing 600 by 86, we get 6 with a remainder of 84.
Write down 6 as next digit of the result. 
Result so far: 1224.06
If we subtract 516 from 600, we get 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 9:
The number 86 fits into 840 9 times, leaving a remainder of 66.
The next digit of our result is 9. 
Result so far: 1224.069
Subtracting 774 from 840 leaves us 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 10:
86 goes into 660 7 times with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 1224.0697
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.

Going ahead to step 11:
86 can be fit into 580 6 times, resulting in a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 1224.06976
If we subtract 516 from 580, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 12:
86 goes into 640 7 times with a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 1224.069767
Subtract 602 from 640 to 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.

Step 13:
If we divide 380 by 86, we get 4 and a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 1224.0697674
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.

Step 14:
86 can be fit into 360 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 1224.06976744
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.

The final result is 1224.06976744 with a remainder of 1.6e-08.