33130994 divided by 648 
The aim is to understand the frequency of 648 in 33130994.

Going ahead to step 1:
648 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 648

Going ahead to step 2:
33 divided by 648 is 0 with a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 33 after subtracting 0 from 33.
Include the next digit (1) from the dividend after 33, then repeat: 331 / 648

Moving on to step 3:
331 divided by 648 is 0 with a remainder of 331.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 331 and we're left with 331.
Include the next digit (3) from the dividend after 331, then repeat: 3313 / 648

Moving on to step 4:
3313 divided by 648 is 5 with a remainder of 73.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 3240 away from 3313, we end up with 73.
Grab the next digit (0) from the dividend, add it to 73, then carry on: 730 / 648

On to step 5:
The number 648 fits into 730 1 times, leaving a remainder of 82.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Deduct 648 from 730 and we're left with 82.
Fetch the next digit (9) from the dividend, attach it to 82 and continue: 829 / 648

Going ahead to step 6:
648 can be fit into 829 1 times, resulting in a remainder of 181.
Record the quotient 1 as the next digit in the result. 
Result so far: 511.0
Subtracting 648 from 829 leaves us with 181.
Include the next digit (9) from the dividend after 181, then repeat: 1819 / 648

Let's proceed to step 7:
648 can be fit into 1819 2 times, resulting in a remainder of 523.
Record the quotient 2 as the next digit in the result. 
Result so far: 5112.0
Subtracting 1296 from 1819 leaves us with 523.
Include the next digit (4) from the dividend after 523, then repeat: 5234 / 648

Moving on to step 8:
648 goes into 5234 8 times with a remainder of 50.
The next digit of our result is 8. 
Result so far: 51128.0
If we subtract 5184 from 5234, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
If we divide 500 by 648, we get 0 and a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 51128.0
If we take 0 away from 500, we end up with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 10:
The number 648 fits into 5000 7 times, leaving a remainder of 464.
Record the quotient 7 as the next digit in the result. 
Result so far: 51128.07
If we take 4536 away from 5000, we end up with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on to step 11:
4640 divided by 648 is 7 with a remainder of 104.
The next digit of our result is 7. 
Result so far: 51128.077
If we subtract 4536 from 4640, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Our division results in 51128.077 with a remaining 0.0104.