We divide 215560 by 86
The aim is to understand the frequency of 86 in 215560.

Moving on to step 1:
86 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 86

Going ahead to step 2:
If we divide 21 by 86, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 86

Step 3:
86 goes into 215 2 times with a remainder of 43.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 172 from 215, we get 43.
Bring next digit (5) of the dividend behind the 43 and repeat the process: 435 / 86

Step 4:
435 divided by 86 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 25.0
If we subtract 430 from 435, we get 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 86

Step 5:
The number 86 fits into 56 0 times, leaving a remainder of 56.
The next digit of our result is 0. 
Result so far: 250.0
The remainder is 56 after subtracting 0 from 56.
Take the next digit (0) from the dividend and append it to 56, then repeat: 560 / 86

Moving on to step 6:
560 divided by 86 is 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 2506.0
Subtract 516 from 560 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 7:
86 can be fit into 440 5 times, resulting in a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 2506.5
Subtracting 430 from 440 leaves us 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.

Advancing to step 8:
The number 86 fits into 100 1 times, leaving a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 2506.51
The remainder is 14 after subtracting 86 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 9:
When dividing 140 by 86, we get 1 with a remainder of 54.
Use 1 as the next digit of our solution. 
Result so far: 2506.511
If we take 86 away from 140, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 2506.511 with a remaining 0.0054.