We're dividing 78552684 by 648 
We're looking to find how many times 648 goes into 78552684.

On to step 1:
648 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 648

Let's proceed to step 2:
648 can be fit into 78 0 times, resulting in a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Append the next digit (5) from the dividend to 78 and continue with: 785 / 648

On to step 3:
When dividing 785 by 648, we get 1 with a remainder of 137.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 648 away from 785, we end up with 137.
Take the next digit (5) from the dividend and append it to 137, then repeat: 1375 / 648

Let's proceed to step 4:
When dividing 1375 by 648, we get 2 with a remainder of 79.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 1296 from 1375 to get 79.
Fetch the next digit (2) from the dividend, attach it to 79 and continue: 792 / 648

Advancing to step 5:
If we divide 792 by 648, we get 1 and a remainder of 144.
The number 1 becomes the next digit in our result. 
Result so far: 121.0
The remainder is 144 after subtracting 648 from 792.
Grab the next digit (6) from the dividend, add it to 144, then carry on: 1446 / 648

Going ahead to step 6:
1446 divided by 648 is 2 with a remainder of 150.
The next digit of our result is 2. 
Result so far: 1212.0
If we subtract 1296 from 1446, we get 150.
Include the next digit (8) from the dividend after 150, then repeat: 1508 / 648

Advancing to step 7:
If we divide 1508 by 648, we get 2 and a remainder of 212.
The next digit of our result is 2. 
Result so far: 12122.0
Subtract 1296 from 1508 to get 212.
Bring next digit (4) of the dividend behind the 212 and repeat the process: 2124 / 648

Going ahead to step 8:
If we divide 2124 by 648, we get 3 and a remainder of 180.
The next digit of our result is 3. 
Result so far: 121223.0
Subtracting 1944 from 2124 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 9:
The number 648 fits into 1800 2 times, leaving a remainder of 504.
The next digit of our result is 2. 
Result so far: 121223.2
If we take 1296 away from 1800, we end up with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

On to step 10:
648 can be fit into 5040 7 times, resulting in a remainder of 504.
Put 7 as the next digit of the answer. 
Result so far: 121223.27
Subtracting 4536 from 5040 leaves us with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Going ahead to step 11:
When dividing 5040 by 648, we get 7 with a remainder of 504.
The number 7 becomes the next digit in our result. 
Result so far: 121223.277
If we subtract 4536 from 5040, we get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

In conclusion, the division gives 121223.277 with a balance of 0.0504.