93991333 ÷ 648 
The aim is to understand the frequency of 648 in 93991333.

Step 1:
648 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 648

Step 2:
648 can be fit into 93 0 times, resulting in a remainder of 93.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 93 and we're left with 93.
Take the next digit (9) from the dividend and append it to 93, then repeat: 939 / 648

Moving on to step 3:
648 goes into 939 1 times with a remainder of 291.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 648 from 939, we get 291.
Append the next digit (9) from the dividend to 291 and continue with: 2919 / 648

Let's proceed to step 4:
648 can be fit into 2919 4 times, resulting in a remainder of 327.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we subtract 2592 from 2919, we get 327.
Take the next digit (1) from the dividend and append it to 327, then repeat: 3271 / 648

Moving on to step 5:
3271 divided by 648 is 5 with a remainder of 31.
The number 5 becomes the next digit in our result. 
Result so far: 145.0
If we subtract 3240 from 3271, we get 31.
Grab the next digit (3) from the dividend, add it to 31, then carry on: 313 / 648

Going ahead to step 6:
313 divided by 648 is 0 with a remainder of 313.
The next digit of our result is 0. 
Result so far: 1450.0
If we subtract 0 from 313, we get 313.
Include the next digit (3) from the dividend after 313, then repeat: 3133 / 648

Step 7:
The number 648 fits into 3133 4 times, leaving a remainder of 541.
The number 4 becomes the next digit in our result. 
Result so far: 14504.0
If we subtract 2592 from 3133, we get 541.
Take the next digit (3) from the dividend and append it to 541, then repeat: 5413 / 648

On to step 8:
648 can be fit into 5413 8 times, resulting in a remainder of 229.
Record the quotient 8 as the next digit in the result. 
Result so far: 145048.0
The remainder is 229 after subtracting 5184 from 5413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

On to step 9:
648 goes into 2290 3 times with a remainder of 346.
The next digit of our result is 3. 
Result so far: 145048.3
Subtracting 1944 from 2290 leaves us with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Going ahead to step 10:
If we divide 3460 by 648, we get 5 and a remainder of 220.
The next digit of our result is 5. 
Result so far: 145048.35
If we take 3240 away from 3460, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 11:
When dividing 2200 by 648, we get 3 with a remainder of 256.
Put 3 as the next digit of the answer. 
Result so far: 145048.353
If we subtract 1944 from 2200, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Step 12:
2560 divided by 648 is 3 with a remainder of 616.
Put 3 as the next digit of the answer. 
Result so far: 145048.3533
The remainder is 616 after subtracting 1944 from 2560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

In conclusion, the division gives 145048.3533 with a balance of 0.00616.