We divide 80344963 by 648
We're looking to find how many times 648 goes into 80344963.

Let's proceed to step 1:
When dividing 8 by 648, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 648

Step 2:
648 can be fit into 80 0 times, resulting in a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Take the next digit (3) from the dividend and append it to 80, then repeat: 803 / 648

Advancing to step 3:
When dividing 803 by 648, we get 1 with a remainder of 155.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 648 from 803 leaves us with 155.
Include the next digit (4) from the dividend after 155, then repeat: 1554 / 648

Let's proceed to step 4:
When dividing 1554 by 648, we get 2 with a remainder of 258.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 1296 from 1554 leaves us with 258.
Take the next digit (4) from the dividend and append it to 258, then repeat: 2584 / 648

Advancing to step 5:
The number 648 fits into 2584 3 times, leaving a remainder of 640.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
If we take 1944 away from 2584, we end up with 640.
Grab the next digit (9) from the dividend, add it to 640, then carry on: 6409 / 648

Let's proceed to step 6:
648 goes into 6409 9 times with a remainder of 577.
Put 9 as the next digit of the answer. 
Result so far: 1239.0
The remainder is 577 after subtracting 5832 from 6409.
Bring next digit (6) of the dividend behind the 577 and repeat the process: 5776 / 648

Going ahead to step 7:
The number 648 fits into 5776 8 times, leaving a remainder of 592.
Record the quotient 8 as the next digit in the result. 
Result so far: 12398.0
If we subtract 5184 from 5776, we get 592.
Take the next digit (3) from the dividend and append it to 592, then repeat: 5923 / 648

Let's proceed to step 8:
5923 divided by 648 is 9 with a remainder of 91.
The number 9 becomes the next digit in our result. 
Result so far: 123989.0
If we take 5832 away from 5923, we end up with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 9:
The number 648 fits into 910 1 times, leaving a remainder of 262.
Record the quotient 1 as the next digit in the result. 
Result so far: 123989.1
The remainder is 262 after subtracting 648 from 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

On to step 10:
When dividing 2620 by 648, we get 4 with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 123989.14
Subtract 2592 from 2620 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
When dividing 280 by 648, we get 0 with a remainder of 280.
The next digit of our result is 0. 
Result so far: 123989.14
If we take 0 away from 280, we end up with 280.
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 12:
When dividing 2800 by 648, we get 4 with a remainder of 208.
Put 4 as the next digit of the answer. 
Result so far: 123989.1404
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.

Step 13:
If we divide 2080 by 648, we get 3 and a remainder of 136.
Write down 3 as next digit of the result. 
Result so far: 123989.14043
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.

Step 14:
648 can be fit into 1360 2 times, resulting in a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 123989.140432
Subtract 1296 from 1360 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 15:
640 divided by 648 is 0 with a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 123989.140432
Subtract 0 from 640 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 16:
If we divide 6400 by 648, we get 9 and a remainder of 568.
Write down 9 as next digit of the result. 
Result so far: 123989.14043209
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.

The final outcome is 123989.14043209, with a leftover of 5.68e-07.