Let's divide 100621 by 86
The aim is to understand the frequency of 86 in 100621.

Step 1:
86 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 86

On to step 2:
86 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 86

Going ahead to step 3:
86 goes into 100 1 times with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 86 from 100 to get 14.
Include the next digit (6) from the dividend after 14, then repeat: 146 / 86

Let's proceed to step 4:
When dividing 146 by 86, we get 1 with a remainder of 60.
The next digit of our result is 1. 
Result so far: 11.0
Deduct 86 from 146 and we're left with 60.
Take the next digit (2) from the dividend and append it to 60, then repeat: 602 / 86

Advancing to step 5:
602 divided by 86 is 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 117.0
If we take 602 away from 602, we end up with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 86

On to step 6:
86 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 1170.0
Subtracting 0 from 1 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
86 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 1170.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
86 goes into 100 1 times with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1170.01
If we subtract 86 from 100, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
140 divided by 86 is 1 with a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 1170.011
Subtract 86 from 140 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

After the division, we end up with 1170.011 and a remainder of 0.0054.