303340 divided by 99 
The aim is to understand the frequency of 99 in 303340.

On to step 1:
When dividing 3 by 99, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 99

Let's proceed to step 2:
99 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Take the next digit (3) from the dividend and append it to 30, then repeat: 303 / 99

Moving on to step 3:
The number 99 fits into 303 3 times, leaving a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 6 after subtracting 297 from 303.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 99

On to step 4:
If we divide 63 by 99, we get 0 and a remainder of 63.
The next digit of our result is 0. 
Result so far: 30.0
Subtract 0 from 63 to get 63.
Take the next digit (4) from the dividend and append it to 63, then repeat: 634 / 99

On to step 5:
634 divided by 99 is 6 with a remainder of 40.
Use 6 as the next digit of our solution. 
Result so far: 306.0
Subtracting 594 from 634 leaves us with 40.
Fetch the next digit (0) from the dividend, attach it to 40 and continue: 400 / 99

Going ahead to step 6:
99 goes into 400 4 times with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 3064.0
Subtract 396 from 400 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
40 divided by 99 is 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 3064.0
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 8:
When dividing 400 by 99, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 3064.04
Subtract 396 from 400 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
If we divide 40 by 99, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 3064.04
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
When dividing 400 by 99, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 3064.0404
Deduct 396 from 400 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 11:
99 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 3064.0404
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
When dividing 400 by 99, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 3064.040404
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
99 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 3064.040404
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 14:
99 goes into 400 4 times with a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 3064.04040404
If we take 396 away from 400, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 3064.04040404 with a remaining 4e-09.