404919 divided by 99 
The aim is to understand the frequency of 99 in 404919.

Advancing to step 1:
99 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 99

Step 2:
If we divide 40 by 99, we get 0 and a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Fetch the next digit (4) from the dividend, attach it to 40 and continue: 404 / 99

Moving on to step 3:
99 can be fit into 404 4 times, resulting in a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 396 from 404 to get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 99

On to step 4:
If we divide 89 by 99, we get 0 and a remainder of 89.
The next digit of our result is 0. 
Result so far: 40.0
If we take 0 away from 89, we end up with 89.
Grab the next digit (1) from the dividend, add it to 89, then carry on: 891 / 99

On to step 5:
99 goes into 891 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 409.0
Subtract 891 from 891 to get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 99

Going ahead to step 6:
99 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 4090.0
Subtract 0 from 9 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
If we divide 90 by 99, we get 0 and a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 4090.0
Subtract 0 from 90 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 8:
99 can be fit into 900 9 times, resulting in a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 4090.09
If we take 891 away from 900, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
99 goes into 90 0 times with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 4090.09
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 10:
The number 99 fits into 900 9 times, leaving a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 4090.0909
Deduct 891 from 900 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 11:
If we divide 90 by 99, we get 0 and a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 4090.0909
If we take 0 away from 90, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 12:
900 divided by 99 is 9 with a remainder of 9.
The next digit of our result is 9. 
Result so far: 4090.090909
Subtracting 891 from 900 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 13:
The number 99 fits into 90 0 times, leaving a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 4090.090909
If we take 0 away from 90, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 14:
When dividing 900 by 99, we get 9 with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 4090.09090909
Subtracting 891 from 900 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The quotient of the division is 4090.09090909, and the remainder is 9e-09.