We look at the division of 115151 by 33 
The aim is to understand the frequency of 33 in 115151.

Advancing to step 1:
When dividing 1 by 33, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 33

Going ahead to step 2:
If we divide 11 by 33, we get 0 and a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 11, we get 11.
Fetch the next digit (5) from the dividend, attach it to 11 and continue: 115 / 33

Step 3:
When dividing 115 by 33, we get 3 with a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 99 away from 115, we end up with 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 33

Let's proceed to step 4:
If we divide 161 by 33, we get 4 and a remainder of 29.
Write down 4 as next digit of the result. 
Result so far: 34.0
Subtract 132 from 161 to get 29.
Take the next digit (5) from the dividend and append it to 29, then repeat: 295 / 33

Let's proceed to step 5:
33 goes into 295 8 times with a remainder of 31.
Write down 8 as next digit of the result. 
Result so far: 348.0
Subtracting 264 from 295 leaves us with 31.
Fetch the next digit (1) from the dividend, attach it to 31 and continue: 311 / 33

Going ahead to step 6:
When dividing 311 by 33, we get 9 with a remainder of 14.
The next digit of our result is 9. 
Result so far: 3489.0
If we take 297 away from 311, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
33 can be fit into 140 4 times, resulting in a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 3489.4
Deduct 132 from 140 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 8:
The number 33 fits into 80 2 times, leaving a remainder of 14.
The next digit of our result is 2. 
Result so far: 3489.42
If we subtract 66 from 80, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 9:
When dividing 140 by 33, we get 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 3489.424
The remainder is 8 after subtracting 132 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
33 can be fit into 80 2 times, resulting in a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 3489.4242
Subtracting 66 from 80 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 11:
The number 33 fits into 140 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 3489.42424
If we subtract 132 from 140, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
If we divide 80 by 33, we get 2 and a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 3489.424242
Subtract 66 from 80 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 13:
33 goes into 140 4 times with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 3489.4242424
The remainder is 8 after subtracting 132 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 14:
The number 33 fits into 80 2 times, leaving a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 3489.42424242
Subtract 66 from 80 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 3489.42424242 with a remainder of 1.4e-08.