Let's divide 80976449 by 648
We're looking to find how many times 648 goes into 80976449.

On to step 1:
648 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 648

On to step 2:
648 can be fit into 80 0 times, resulting in a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Take the next digit (9) from the dividend and append it to 80, then repeat: 809 / 648

Moving on to step 3:
809 divided by 648 is 1 with a remainder of 161.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 648 from 809 and we're left with 161.
Include the next digit (7) from the dividend after 161, then repeat: 1617 / 648

Going ahead to step 4:
If we divide 1617 by 648, we get 2 and a remainder of 321.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtract 1296 from 1617 to get 321.
Append the next digit (6) from the dividend to 321 and continue with: 3216 / 648

Advancing to step 5:
3216 divided by 648 is 4 with a remainder of 624.
Write down 4 as next digit of the result. 
Result so far: 124.0
The remainder is 624 after subtracting 2592 from 3216.
Fetch the next digit (4) from the dividend, attach it to 624 and continue: 6244 / 648

Advancing to step 6:
648 can be fit into 6244 9 times, resulting in a remainder of 412.
The number 9 becomes the next digit in our result. 
Result so far: 1249.0
Subtracting 5832 from 6244 leaves us with 412.
Take the next digit (4) from the dividend and append it to 412, then repeat: 4124 / 648

Step 7:
If we divide 4124 by 648, we get 6 and a remainder of 236.
Record the quotient 6 as the next digit in the result. 
Result so far: 12496.0
If we take 3888 away from 4124, we end up with 236.
Take the next digit (9) from the dividend and append it to 236, then repeat: 2369 / 648

Advancing to step 8:
648 can be fit into 2369 3 times, resulting in a remainder of 425.
The next digit of our result is 3. 
Result so far: 124963.0
Deduct 1944 from 2369 and we're left with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Step 9:
648 goes into 4250 6 times with a remainder of 362.
Use 6 as the next digit of our solution. 
Result so far: 124963.6
If we subtract 3888 from 4250, we get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Let's proceed to step 10:
When dividing 3620 by 648, we get 5 with a remainder of 380.
The number 5 becomes the next digit in our result. 
Result so far: 124963.65
Subtract 3240 from 3620 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 11:
If we divide 3800 by 648, we get 5 and a remainder of 560.
Use 5 as the next digit of our solution. 
Result so far: 124963.655
If we subtract 3240 from 3800, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

In conclusion, the division gives 124963.655 with a balance of 0.056.