866298 ÷ 87 
The aim is to understand the frequency of 87 in 866298.

On to step 1:
When dividing 8 by 87, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 87

Going ahead to step 2:
87 can be fit into 86 0 times, resulting in a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Append the next digit (6) from the dividend to 86 and continue with: 866 / 87

On to step 3:
866 divided by 87 is 9 with a remainder of 83.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtracting 783 from 866 leaves us with 83.
Bring next digit (2) of the dividend behind the 83 and repeat the process: 832 / 87

Advancing to step 4:
If we divide 832 by 87, we get 9 and a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 99.0
If we take 783 away from 832, we end up with 49.
Bring next digit (9) of the dividend behind the 49 and repeat the process: 499 / 87

Advancing to step 5:
87 goes into 499 5 times with a remainder of 64.
The number 5 becomes the next digit in our result. 
Result so far: 995.0
Subtract 435 from 499 to get 64.
Append the next digit (8) from the dividend to 64 and continue with: 648 / 87

Going ahead to step 6:
87 goes into 648 7 times with a remainder of 39.
The next digit of our result is 7. 
Result so far: 9957.0
If we take 609 away from 648, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 7:
When dividing 390 by 87, we get 4 with a remainder of 42.
Write down 4 as next digit of the result. 
Result so far: 9957.4
The remainder is 42 after subtracting 348 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 8:
420 divided by 87 is 4 with a remainder of 72.
Record the quotient 4 as the next digit in the result. 
Result so far: 9957.44
The remainder is 72 after subtracting 348 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

In conclusion, the division gives 9957.44 with a balance of 0.072.