We're dividing 251850 by 33 
The aim is to understand the frequency of 33 in 251850.

Going ahead to step 1:
2 divided by 33 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 33

On to step 2:
If we divide 25 by 33, we get 0 and a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Append the next digit (1) from the dividend to 25 and continue with: 251 / 33

Step 3:
33 can be fit into 251 7 times, resulting in a remainder of 20.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 231 away from 251, we end up with 20.
Bring next digit (8) of the dividend behind the 20 and repeat the process: 208 / 33

On to step 4:
When dividing 208 by 33, we get 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 76.0
Deduct 198 from 208 and we're left with 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 33

Step 5:
If we divide 105 by 33, we get 3 and a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 763.0
Subtracting 99 from 105 leaves us with 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 33

Let's proceed to step 6:
When dividing 60 by 33, we get 1 with a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 7631.0
Subtract 33 from 60 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 7:
When dividing 270 by 33, we get 8 with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 7631.8
Deduct 264 from 270 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
33 goes into 60 1 times with a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 7631.81
Subtract 33 from 60 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 9:
270 divided by 33 is 8 with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 7631.818
If we subtract 264 from 270, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
The number 33 fits into 60 1 times, leaving a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 7631.8181
If we take 33 away from 60, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 11:
33 goes into 270 8 times with a remainder of 6.
The next digit of our result is 8. 
Result so far: 7631.81818
The remainder is 6 after subtracting 264 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 12:
33 can be fit into 60 1 times, resulting in a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 7631.818181
The remainder is 27 after subtracting 33 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 13:
270 divided by 33 is 8 with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 7631.8181818
Subtracting 264 from 270 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 14:
When dividing 60 by 33, we get 1 with a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 7631.81818181
Subtract 33 from 60 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Our division results in 7631.81818181 with a remaining 2.7e-08.