We look at the division of 302149 by 99 
The aim is to understand the frequency of 99 in 302149.

Advancing to step 1:
If we divide 3 by 99, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 99

Let's proceed to step 2:
99 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Include the next digit (2) from the dividend after 30, then repeat: 302 / 99

Going ahead to step 3:
When dividing 302 by 99, we get 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 297 from 302, we get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 99

On to step 4:
99 can be fit into 51 0 times, resulting in a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 30.0
Deduct 0 from 51 and we're left with 51.
Grab the next digit (4) from the dividend, add it to 51, then carry on: 514 / 99

Step 5:
If we divide 514 by 99, we get 5 and a remainder of 19.
Use 5 as the next digit of our solution. 
Result so far: 305.0
If we take 495 away from 514, we end up with 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 99

Let's proceed to step 6:
When dividing 199 by 99, we get 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 3052.0
If we subtract 198 from 199, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
If we divide 10 by 99, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 3052.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
99 goes into 100 1 times with a remainder of 1.
The next digit of our result is 1. 
Result so far: 3052.01
Deduct 99 from 100 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
When dividing 10 by 99, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 3052.01
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
When dividing 100 by 99, we get 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 3052.0101
If we take 99 away from 100, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 11:
The number 99 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 3052.0101
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
The number 99 fits into 100 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 3052.010101
If we take 99 away from 100, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 13:
If we divide 10 by 99, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 3052.010101
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 14:
100 divided by 99 is 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 3052.01010101
Subtract 99 from 100 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 3052.01010101 and a remainder of 1e-09.