Let's divide 302513 by 99
The aim is to understand the frequency of 99 in 302513.

On to step 1:
99 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 99

Let's proceed to step 2:
30 divided by 99 is 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Bring next digit (2) of the dividend behind the 30 and repeat the process: 302 / 99

Let's proceed to step 3:
302 divided by 99 is 3 with a remainder of 5.
The next digit of our result is 3. 
Result so far: 3.0
If we take 297 away from 302, we end up with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 99

Let's proceed to step 4:
55 divided by 99 is 0 with a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
Subtracting 0 from 55 leaves us with 55.
Bring next digit (1) of the dividend behind the 55 and repeat the process: 551 / 99

Going ahead to step 5:
If we divide 551 by 99, we get 5 and a remainder of 56.
The next digit of our result is 5. 
Result so far: 305.0
Subtract 495 from 551 to get 56.
Include the next digit (3) from the dividend after 56, then repeat: 563 / 99

Advancing to step 6:
When dividing 563 by 99, we get 5 with a remainder of 68.
The number 5 becomes the next digit in our result. 
Result so far: 3055.0
If we take 495 away from 563, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 7:
If we divide 680 by 99, we get 6 and a remainder of 86.
Write down 6 as next digit of the result. 
Result so far: 3055.6
The remainder is 86 after subtracting 594 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 8:
If we divide 860 by 99, we get 8 and a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 3055.68
Subtracting 792 from 860 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
If we divide 680 by 99, we get 6 and a remainder of 86.
The number 6 becomes the next digit in our result. 
Result so far: 3055.686
Subtract 594 from 680 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 10:
860 divided by 99 is 8 with a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 3055.6868
Subtracting 792 from 860 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 11:
When dividing 680 by 99, we get 6 with a remainder of 86.
Use 6 as the next digit of our solution. 
Result so far: 3055.68686
Subtract 594 from 680 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 12:
When dividing 860 by 99, we get 8 with a remainder of 68.
The number 8 becomes the next digit in our result. 
Result so far: 3055.686868
If we subtract 792 from 860, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 13:
The number 99 fits into 680 6 times, leaving a remainder of 86.
The next digit of our result is 6. 
Result so far: 3055.6868686
Subtracting 594 from 680 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 14:
When dividing 860 by 99, we get 8 with a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 3055.68686868
Deduct 792 from 860 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

The quotient of the division is 3055.68686868, and the remainder is 6.8e-08.