Let's divide 86361 by 99
The aim is to understand the frequency of 99 in 86361.

Step 1:
When dividing 8 by 99, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 99

Going ahead to step 2:
When dividing 86 by 99, we get 0 with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Take the next digit (3) from the dividend and append it to 86, then repeat: 863 / 99

Step 3:
99 goes into 863 8 times with a remainder of 71.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 71 after subtracting 792 from 863.
Append the next digit (6) from the dividend to 71 and continue with: 716 / 99

Moving on to step 4:
The number 99 fits into 716 7 times, leaving a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 87.0
The remainder is 23 after subtracting 693 from 716.
Append the next digit (1) from the dividend to 23 and continue with: 231 / 99

Moving on to step 5:
99 goes into 231 2 times with a remainder of 33.
Use 2 as the next digit of our solution. 
Result so far: 872.0
Subtract 198 from 231 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 6:
If we divide 330 by 99, we get 3 and a remainder of 33.
Write down 3 as next digit of the result. 
Result so far: 872.3
Deduct 297 from 330 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
99 goes into 330 3 times with a remainder of 33.
Put 3 as the next digit of the answer. 
Result so far: 872.33
Deduct 297 from 330 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

The quotient of the division is 872.33, and the remainder is 0.033.