We divide 33395254 by 648
The aim is to understand the frequency of 648 in 33395254.

Step 1:
648 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 648

Moving on to step 2:
When dividing 33 by 648, we get 0 with a remainder of 33.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 33, we get 33.
Include the next digit (3) from the dividend after 33, then repeat: 333 / 648

Moving on to step 3:
333 divided by 648 is 0 with a remainder of 333.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 333 after subtracting 0 from 333.
Bring next digit (9) of the dividend behind the 333 and repeat the process: 3339 / 648

Going ahead to step 4:
The number 648 fits into 3339 5 times, leaving a remainder of 99.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 3240 from 3339 leaves us with 99.
Bring next digit (5) of the dividend behind the 99 and repeat the process: 995 / 648

Moving on to step 5:
648 can be fit into 995 1 times, resulting in a remainder of 347.
Use 1 as the next digit of our solution. 
Result so far: 51.0
If we take 648 away from 995, we end up with 347.
Include the next digit (2) from the dividend after 347, then repeat: 3472 / 648

Step 6:
648 goes into 3472 5 times with a remainder of 232.
Write down 5 as next digit of the result. 
Result so far: 515.0
Subtract 3240 from 3472 to get 232.
Fetch the next digit (5) from the dividend, attach it to 232 and continue: 2325 / 648

Advancing to step 7:
When dividing 2325 by 648, we get 3 with a remainder of 381.
The number 3 becomes the next digit in our result. 
Result so far: 5153.0
Deduct 1944 from 2325 and we're left with 381.
Bring next digit (4) of the dividend behind the 381 and repeat the process: 3814 / 648

Going ahead to step 8:
648 can be fit into 3814 5 times, resulting in a remainder of 574.
The next digit of our result is 5. 
Result so far: 51535.0
Subtract 3240 from 3814 to get 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Step 9:
The number 648 fits into 5740 8 times, leaving a remainder of 556.
Put 8 as the next digit of the answer. 
Result so far: 51535.8
If we subtract 5184 from 5740, we get 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Moving on to step 10:
648 can be fit into 5560 8 times, resulting in a remainder of 376.
The number 8 becomes the next digit in our result. 
Result so far: 51535.88
If we take 5184 away from 5560, we end up with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

The final result is 51535.88 with a remainder of 0.376.