We're dividing 420551 by 33 
The aim is to understand the frequency of 33 in 420551.

Moving on to step 1:
When dividing 4 by 33, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 33

Advancing to step 2:
42 divided by 33 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 33 from 42, we get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 33

Let's proceed to step 3:
When dividing 90 by 33, we get 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 66 from 90 to get 24.
Take the next digit (5) from the dividend and append it to 24, then repeat: 245 / 33

Advancing to step 4:
The number 33 fits into 245 7 times, leaving a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 127.0
The remainder is 14 after subtracting 231 from 245.
Take the next digit (5) from the dividend and append it to 14, then repeat: 145 / 33

Advancing to step 5:
33 goes into 145 4 times with a remainder of 13.
Put 4 as the next digit of the answer. 
Result so far: 1274.0
Deduct 132 from 145 and we're left with 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 33

Let's proceed to step 6:
131 divided by 33 is 3 with a remainder of 32.
The next digit of our result is 3. 
Result so far: 12743.0
Subtract 99 from 131 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 7:
If we divide 320 by 33, we get 9 and a remainder of 23.
The next digit of our result is 9. 
Result so far: 12743.9
Subtract 297 from 320 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 8:
The number 33 fits into 230 6 times, leaving a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 12743.96
Deduct 198 from 230 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 9:
When dividing 320 by 33, we get 9 with a remainder of 23.
The number 9 becomes the next digit in our result. 
Result so far: 12743.969
Subtracting 297 from 320 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 10:
When dividing 230 by 33, we get 6 with a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 12743.9696
Deduct 198 from 230 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 11:
33 goes into 320 9 times with a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 12743.96969
The remainder is 23 after subtracting 297 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 12:
33 can be fit into 230 6 times, resulting in a remainder of 32.
The next digit of our result is 6. 
Result so far: 12743.969696
Subtract 198 from 230 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 13:
The number 33 fits into 320 9 times, leaving a remainder of 23.
The next digit of our result is 9. 
Result so far: 12743.9696969
Subtract 297 from 320 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 14:
33 can be fit into 230 6 times, resulting in a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 12743.96969696
Subtracting 198 from 230 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 12743.96969696 with a remainder of 3.2e-08.