We look at the division of 86859215 by 120 
The aim is to understand the frequency of 120 in 86859215.

On to step 1:
The number 120 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 120

Moving on to step 2:
120 can be fit into 86 0 times, resulting in a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Bring next digit (8) of the dividend behind the 86 and repeat the process: 868 / 120

Advancing to step 3:
868 divided by 120 is 7 with a remainder of 28.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 840 from 868 to get 28.
Fetch the next digit (5) from the dividend, attach it to 28 and continue: 285 / 120

Advancing to step 4:
If we divide 285 by 120, we get 2 and a remainder of 45.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
Subtracting 240 from 285 leaves us with 45.
Append the next digit (9) from the dividend to 45 and continue with: 459 / 120

On to step 5:
The number 120 fits into 459 3 times, leaving a remainder of 99.
Record the quotient 3 as the next digit in the result. 
Result so far: 723.0
If we subtract 360 from 459, we get 99.
Bring next digit (2) of the dividend behind the 99 and repeat the process: 992 / 120

On to step 6:
120 can be fit into 992 8 times, resulting in a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 7238.0
Subtract 960 from 992 to get 32.
Include the next digit (1) from the dividend after 32, then repeat: 321 / 120

On to step 7:
321 divided by 120 is 2 with a remainder of 81.
Put 2 as the next digit of the answer. 
Result so far: 72382.0
Subtracting 240 from 321 leaves us with 81.
Fetch the next digit (5) from the dividend, attach it to 81 and continue: 815 / 120

Let's proceed to step 8:
815 divided by 120 is 6 with a remainder of 95.
Write down 6 as next digit of the result. 
Result so far: 723826.0
If we take 720 away from 815, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Let's proceed to step 9:
When dividing 950 by 120, we get 7 with a remainder of 110.
Record the quotient 7 as the next digit in the result. 
Result so far: 723826.7
Deduct 840 from 950 and we're left with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 10:
1100 divided by 120 is 9 with a remainder of 20.
Put 9 as the next digit of the answer. 
Result so far: 723826.79
If we subtract 1080 from 1100, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
120 can be fit into 200 1 times, resulting in a remainder of 80.
The number 1 becomes the next digit in our result. 
Result so far: 723826.791
If we take 120 away from 200, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 12:
800 divided by 120 is 6 with a remainder of 80.
Put 6 as the next digit of the answer. 
Result so far: 723826.7916
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 13:
If we divide 800 by 120, we get 6 and a remainder of 80.
Write down 6 as next digit of the result. 
Result so far: 723826.79166
Subtracting 720 from 800 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 723826.79166 with a remainder of 8e-05.