We divide 823403 by 99
The aim is to understand the frequency of 99 in 823403.

On to step 1:
99 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (2) from the dividend and append it to 8, then repeat: 82 / 99

Going ahead to step 2:
When dividing 82 by 99, we get 0 with a remainder of 82.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 82, we end up with 82.
Bring next digit (3) of the dividend behind the 82 and repeat the process: 823 / 99

Moving on to step 3:
823 divided by 99 is 8 with a remainder of 31.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 792 away from 823, we end up with 31.
Append the next digit (4) from the dividend to 31 and continue with: 314 / 99

Let's proceed to step 4:
When dividing 314 by 99, we get 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 83.0
Subtracting 297 from 314 leaves us with 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 99

On to step 5:
If we divide 170 by 99, we get 1 and a remainder of 71.
Write down 1 as next digit of the result. 
Result so far: 831.0
The remainder is 71 after subtracting 99 from 170.
Append the next digit (3) from the dividend to 71 and continue with: 713 / 99

On to step 6:
When dividing 713 by 99, we get 7 with a remainder of 20.
Record the quotient 7 as the next digit in the result. 
Result so far: 8317.0
Deduct 693 from 713 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 7:
99 goes into 200 2 times with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 8317.2
Subtract 198 from 200 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
20 divided by 99 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 8317.2
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
99 goes into 200 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 8317.202
If we take 198 away from 200, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
99 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 8317.202
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 11:
99 can be fit into 200 2 times, resulting in a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 8317.20202
The remainder is 2 after subtracting 198 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 12:
The number 99 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 8317.20202
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
99 goes into 200 2 times with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 8317.2020202
Deduct 198 from 200 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 14:
The number 99 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 8317.2020202
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 8317.2020202 and a remainder of 2e-08.