642876 ÷ 33 
The aim is to understand the frequency of 33 in 642876.

Step 1:
If we divide 6 by 33, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 33

On to step 2:
33 can be fit into 64 1 times, resulting in a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 33 away from 64, we end up with 31.
Bring next digit (2) of the dividend behind the 31 and repeat the process: 312 / 33

Going ahead to step 3:
33 can be fit into 312 9 times, resulting in a remainder of 15.
Write down 9 as next digit of the result. 
Result so far: 19.0
Subtract 297 from 312 to get 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 33

Moving on to step 4:
158 divided by 33 is 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 194.0
Subtracting 132 from 158 leaves us with 26.
Fetch the next digit (7) from the dividend, attach it to 26 and continue: 267 / 33

Let's proceed to step 5:
The number 33 fits into 267 8 times, leaving a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 1948.0
Deduct 264 from 267 and we're left with 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 33

Moving on to step 6:
If we divide 36 by 33, we get 1 and a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 19481.0
The remainder is 3 after subtracting 33 from 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
The number 33 fits into 30 0 times, leaving a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 19481.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
When dividing 300 by 33, we get 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 19481.09
Subtracting 297 from 300 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 9:
33 goes into 30 0 times with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 19481.09
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 10:
300 divided by 33 is 9 with a remainder of 3.
The next digit of our result is 9. 
Result so far: 19481.0909
If we take 297 away from 300, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 11:
30 divided by 33 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 19481.0909
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 12:
If we divide 300 by 33, we get 9 and a remainder of 3.
The next digit of our result is 9. 
Result so far: 19481.090909
If we subtract 297 from 300, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 13:
30 divided by 33 is 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 19481.090909
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
The number 33 fits into 300 9 times, leaving a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 19481.09090909
If we subtract 297 from 300, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

After the division, we end up with 19481.09090909 and a remainder of 3e-09.