We look at the division of 391495 by 33 
The aim is to understand the frequency of 33 in 391495.

Moving on to step 1:
When dividing 3 by 33, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 33

Moving on to step 2:
39 divided by 33 is 1 with a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 33 from 39, we get 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 33

On to step 3:
When dividing 61 by 33, we get 1 with a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we subtract 33 from 61, we get 28.
Take the next digit (4) from the dividend and append it to 28, then repeat: 284 / 33

Step 4:
The number 33 fits into 284 8 times, leaving a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 118.0
The remainder is 20 after subtracting 264 from 284.
Take the next digit (9) from the dividend and append it to 20, then repeat: 209 / 33

Step 5:
If we divide 209 by 33, we get 6 and a remainder of 11.
Put 6 as the next digit of the answer. 
Result so far: 1186.0
Subtract 198 from 209 to get 11.
Fetch the next digit (5) from the dividend, attach it to 11 and continue: 115 / 33

Moving on to step 6:
When dividing 115 by 33, we get 3 with a remainder of 16.
The next digit of our result is 3. 
Result so far: 11863.0
The remainder is 16 after subtracting 99 from 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 7:
When dividing 160 by 33, we get 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 11863.4
Deduct 132 from 160 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 8:
The number 33 fits into 280 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 11863.48
Deduct 264 from 280 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
160 divided by 33 is 4 with a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 11863.484
Subtracting 132 from 160 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 10:
When dividing 280 by 33, we get 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 11863.4848
If we take 264 away from 280, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
33 can be fit into 160 4 times, resulting in a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 11863.48484
Subtract 132 from 160 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
33 goes into 280 8 times with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 11863.484848
Subtracting 264 from 280 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
When dividing 160 by 33, we get 4 with a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 11863.4848484
Deduct 132 from 160 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
33 can be fit into 280 8 times, resulting in a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 11863.48484848
If we take 264 away from 280, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 11863.48484848, with a leftover of 1.6e-08.