79776626 divided by 648 
The aim is to understand the frequency of 648 in 79776626.

Going ahead to step 1:
The number 648 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 648

Going ahead to step 2:
When dividing 79 by 648, we get 0 with a remainder of 79.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 79, we end up with 79.
Append the next digit (7) from the dividend to 79 and continue with: 797 / 648

Let's proceed to step 3:
648 goes into 797 1 times with a remainder of 149.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 648 from 797 to get 149.
Include the next digit (7) from the dividend after 149, then repeat: 1497 / 648

Moving on to step 4:
1497 divided by 648 is 2 with a remainder of 201.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 1296 from 1497 to get 201.
Bring next digit (6) of the dividend behind the 201 and repeat the process: 2016 / 648

Advancing to step 5:
When dividing 2016 by 648, we get 3 with a remainder of 72.
The next digit of our result is 3. 
Result so far: 123.0
The remainder is 72 after subtracting 1944 from 2016.
Bring next digit (6) of the dividend behind the 72 and repeat the process: 726 / 648

Moving on to step 6:
The number 648 fits into 726 1 times, leaving a remainder of 78.
Use 1 as the next digit of our solution. 
Result so far: 1231.0
If we subtract 648 from 726, we get 78.
Fetch the next digit (2) from the dividend, attach it to 78 and continue: 782 / 648

Going ahead to step 7:
When dividing 782 by 648, we get 1 with a remainder of 134.
Put 1 as the next digit of the answer. 
Result so far: 12311.0
If we subtract 648 from 782, we get 134.
Take the next digit (6) from the dividend and append it to 134, then repeat: 1346 / 648

On to step 8:
If we divide 1346 by 648, we get 2 and a remainder of 50.
Put 2 as the next digit of the answer. 
Result so far: 123112.0
Subtracting 1296 from 1346 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
648 goes into 500 0 times with a remainder of 500.
The number 0 becomes the next digit in our result. 
Result so far: 123112.0
Subtracting 0 from 500 leaves us 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.

On to step 10:
648 goes into 5000 7 times with a remainder of 464.
Use 7 as the next digit of our solution. 
Result so far: 123112.07
If we subtract 4536 from 5000, we get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Step 11:
648 goes into 4640 7 times with a remainder of 104.
Put 7 as the next digit of the answer. 
Result so far: 123112.077
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 123112.077 with a remaining 0.0104.