We divide 120171 by 86
The aim is to understand the frequency of 86 in 120171.

Step 1:
If we divide 1 by 86, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 86

Let's proceed to step 2:
12 divided by 86 is 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Take the next digit (0) from the dividend and append it to 12, then repeat: 120 / 86

On to step 3:
86 can be fit into 120 1 times, resulting in a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 86 away from 120, we end up with 34.
Fetch the next digit (1) from the dividend, attach it to 34 and continue: 341 / 86

Advancing to step 4:
341 divided by 86 is 3 with a remainder of 83.
Write down 3 as next digit of the result. 
Result so far: 13.0
Deduct 258 from 341 and we're left with 83.
Fetch the next digit (7) from the dividend, attach it to 83 and continue: 837 / 86

Step 5:
When dividing 837 by 86, we get 9 with a remainder of 63.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
Deduct 774 from 837 and we're left with 63.
Bring next digit (1) of the dividend behind the 63 and repeat the process: 631 / 86

Let's proceed to step 6:
When dividing 631 by 86, we get 7 with a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 1397.0
Subtract 602 from 631 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
The number 86 fits into 290 3 times, leaving a remainder of 32.
The number 3 becomes the next digit in our result. 
Result so far: 1397.3
If we subtract 258 from 290, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 8:
86 goes into 320 3 times with a remainder of 62.
Record the quotient 3 as the next digit in the result. 
Result so far: 1397.33
The remainder is 62 after subtracting 258 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

The quotient of the division is 1397.33, and the remainder is 0.062.