We're dividing 88020668 by 648 
The aim is to understand the frequency of 648 in 88020668.

On to step 1:
648 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 648

Advancing to step 2:
The number 648 fits into 88 0 times, leaving a remainder of 88.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 88 and we're left with 88.
Include the next digit (0) from the dividend after 88, then repeat: 880 / 648

Moving on to step 3:
648 can be fit into 880 1 times, resulting in a remainder of 232.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 648 from 880 and we're left with 232.
Bring next digit (2) of the dividend behind the 232 and repeat the process: 2322 / 648

Going ahead to step 4:
If we divide 2322 by 648, we get 3 and a remainder of 378.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 1944 away from 2322, we end up with 378.
Take the next digit (0) from the dividend and append it to 378, then repeat: 3780 / 648

Let's proceed to step 5:
If we divide 3780 by 648, we get 5 and a remainder of 540.
The number 5 becomes the next digit in our result. 
Result so far: 135.0
Subtract 3240 from 3780 to get 540.
Include the next digit (6) from the dividend after 540, then repeat: 5406 / 648

Let's proceed to step 6:
648 can be fit into 5406 8 times, resulting in a remainder of 222.
The next digit of our result is 8. 
Result so far: 1358.0
If we subtract 5184 from 5406, we get 222.
Fetch the next digit (6) from the dividend, attach it to 222 and continue: 2226 / 648

Let's proceed to step 7:
The number 648 fits into 2226 3 times, leaving a remainder of 282.
Record the quotient 3 as the next digit in the result. 
Result so far: 13583.0
If we subtract 1944 from 2226, we get 282.
Include the next digit (8) from the dividend after 282, then repeat: 2828 / 648

Step 8:
The number 648 fits into 2828 4 times, leaving a remainder of 236.
The next digit of our result is 4. 
Result so far: 135834.0
The remainder is 236 after subtracting 2592 from 2828.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Moving on to step 9:
The number 648 fits into 2360 3 times, leaving a remainder of 416.
Write down 3 as next digit of the result. 
Result so far: 135834.3
If we take 1944 away from 2360, we end up with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

On to step 10:
When dividing 4160 by 648, we get 6 with a remainder of 272.
Put 6 as the next digit of the answer. 
Result so far: 135834.36
Subtract 3888 from 4160 to get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Step 11:
If we divide 2720 by 648, we get 4 and a remainder of 128.
The number 4 becomes the next digit in our result. 
Result so far: 135834.364
The remainder is 128 after subtracting 2592 from 2720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 12:
1280 divided by 648 is 1 with a remainder of 632.
Write down 1 as next digit of the result. 
Result so far: 135834.3641
If we subtract 648 from 1280, we get 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Step 13:
6320 divided by 648 is 9 with a remainder of 488.
The number 9 becomes the next digit in our result. 
Result so far: 135834.36419
Subtract 5832 from 6320 to get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Going ahead to step 14:
When dividing 4880 by 648, we get 7 with a remainder of 344.
Record the quotient 7 as the next digit in the result. 
Result so far: 135834.364197
Subtracting 4536 from 4880 leaves us with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Step 15:
The number 648 fits into 3440 5 times, leaving a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 135834.3641975
If we take 3240 away from 3440, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 16:
When dividing 2000 by 648, we get 3 with a remainder of 56.
The number 3 becomes the next digit in our result. 
Result so far: 135834.36419753
Subtract 1944 from 2000 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 135834.36419753, with a leftover of 5.6e-08.