69761152 ÷ 648 
The aim is to understand the frequency of 648 in 69761152.

Going ahead to step 1:
If we divide 6 by 648, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 648

Advancing to step 2:
If we divide 69 by 648, we get 0 and a remainder of 69.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 69, we end up with 69.
Grab the next digit (7) from the dividend, add it to 69, then carry on: 697 / 648

Advancing to step 3:
648 goes into 697 1 times with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 648 from 697, we get 49.
Append the next digit (6) from the dividend to 49 and continue with: 496 / 648

Let's proceed to step 4:
The number 648 fits into 496 0 times, leaving a remainder of 496.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 496, we get 496.
Fetch the next digit (1) from the dividend, attach it to 496 and continue: 4961 / 648

Step 5:
If we divide 4961 by 648, we get 7 and a remainder of 425.
Write down 7 as next digit of the result. 
Result so far: 107.0
The remainder is 425 after subtracting 4536 from 4961.
Bring next digit (1) of the dividend behind the 425 and repeat the process: 4251 / 648

Step 6:
648 can be fit into 4251 6 times, resulting in a remainder of 363.
Use 6 as the next digit of our solution. 
Result so far: 1076.0
Subtracting 3888 from 4251 leaves us with 363.
Include the next digit (5) from the dividend after 363, then repeat: 3635 / 648

Let's proceed to step 7:
If we divide 3635 by 648, we get 5 and a remainder of 395.
Write down 5 as next digit of the result. 
Result so far: 10765.0
Subtracting 3240 from 3635 leaves us with 395.
Fetch the next digit (2) from the dividend, attach it to 395 and continue: 3952 / 648

Let's proceed to step 8:
3952 divided by 648 is 6 with a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 107656.0
Subtracting 3888 from 3952 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 9:
648 goes into 640 0 times with a remainder of 640.
Put 0 as the next digit of the answer. 
Result so far: 107656.0
Deduct 0 from 640 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 10:
6400 divided by 648 is 9 with a remainder of 568.
Put 9 as the next digit of the answer. 
Result so far: 107656.09
If we take 5832 away from 6400, we end up with 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

Advancing to step 11:
If we divide 5680 by 648, we get 8 and a remainder of 496.
Put 8 as the next digit of the answer. 
Result so far: 107656.098
If we subtract 5184 from 5680, we get 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Step 12:
4960 divided by 648 is 7 with a remainder of 424.
Record the quotient 7 as the next digit in the result. 
Result so far: 107656.0987
The remainder is 424 after subtracting 4536 from 4960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Going ahead to step 13:
648 goes into 4240 6 times with a remainder of 352.
Write down 6 as next digit of the result. 
Result so far: 107656.09876
If we take 3888 away from 4240, we end up with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Let's proceed to step 14:
3520 divided by 648 is 5 with a remainder of 280.
Use 5 as the next digit of our solution. 
Result so far: 107656.098765
The remainder is 280 after subtracting 3240 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 15:
2800 divided by 648 is 4 with a remainder of 208.
The next digit of our result is 4. 
Result so far: 107656.0987654
If we take 2592 away from 2800, we end up with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Moving on to step 16:
648 goes into 2080 3 times with a remainder of 136.
The number 3 becomes the next digit in our result. 
Result so far: 107656.09876543
Deduct 1944 from 2080 and we're left with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

The final result is 107656.09876543 with a remainder of 1.36e-07.