We're dividing 99864 by 19 
The aim is to understand the frequency of 19 in 99864.

Moving on to step 1:
When dividing 9 by 19, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 19

On to step 2:
99 divided by 19 is 5 with a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 4 after subtracting 95 from 99.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 19

Going ahead to step 3:
19 can be fit into 48 2 times, resulting in a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
The remainder is 10 after subtracting 38 from 48.
Append the next digit (6) from the dividend to 10 and continue with: 106 / 19

Step 4:
If we divide 106 by 19, we get 5 and a remainder of 11.
The number 5 becomes the next digit in our result. 
Result so far: 525.0
If we take 95 away from 106, we end up with 11.
Take the next digit (4) from the dividend and append it to 11, then repeat: 114 / 19

Step 5:
If we divide 114 by 19, we get 6 and a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 5256.0
Deduct 114 from 114 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 6:
19 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5256.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
19 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5256.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 5256.0 with a remainder of 0.0.