We look at the division of 12249892 by 648 
We're looking to find how many times 648 goes into 12249892.

Advancing to step 1:
648 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 648

Step 2:
648 can be fit into 12 0 times, resulting in a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Fetch the next digit (2) from the dividend, attach it to 12 and continue: 122 / 648

On to step 3:
122 divided by 648 is 0 with a remainder of 122.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 122 and we're left with 122.
Include the next digit (4) from the dividend after 122, then repeat: 1224 / 648

Advancing to step 4:
The number 648 fits into 1224 1 times, leaving a remainder of 576.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 648 from 1224, we get 576.
Fetch the next digit (9) from the dividend, attach it to 576 and continue: 5769 / 648

On to step 5:
If we divide 5769 by 648, we get 8 and a remainder of 585.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 5184 from 5769 leaves us with 585.
Bring next digit (8) of the dividend behind the 585 and repeat the process: 5858 / 648

Moving on to step 6:
648 can be fit into 5858 9 times, resulting in a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 189.0
If we subtract 5832 from 5858, we get 26.
Append the next digit (9) from the dividend to 26 and continue with: 269 / 648

Going ahead to step 7:
If we divide 269 by 648, we get 0 and a remainder of 269.
The number 0 becomes the next digit in our result. 
Result so far: 1890.0
Deduct 0 from 269 and we're left with 269.
Include the next digit (2) from the dividend after 269, then repeat: 2692 / 648

Advancing to step 8:
648 can be fit into 2692 4 times, resulting in a remainder of 100.
The next digit of our result is 4. 
Result so far: 18904.0
If we subtract 2592 from 2692, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 9:
When dividing 1000 by 648, we get 1 with a remainder of 352.
The number 1 becomes the next digit in our result. 
Result so far: 18904.1
Subtracting 648 from 1000 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Moving on to step 10:
648 can be fit into 3520 5 times, resulting in a remainder of 280.
Put 5 as the next digit of the answer. 
Result so far: 18904.15
Deduct 3240 from 3520 and we're left 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.

Step 11:
2800 divided by 648 is 4 with a remainder of 208.
Use 4 as the next digit of our solution. 
Result so far: 18904.154
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.

Advancing to step 12:
2080 divided by 648 is 3 with a remainder of 136.
The number 3 becomes the next digit in our result. 
Result so far: 18904.1543
If we subtract 1944 from 2080, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 13:
If we divide 1360 by 648, we get 2 and a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 18904.15432
Deduct 1296 from 1360 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 14:
648 goes into 640 0 times with a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 18904.15432
If we subtract 0 from 640, we 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.

On to step 15:
648 can be fit into 6400 9 times, resulting in a remainder of 568.
The number 9 becomes the next digit in our result. 
Result so far: 18904.1543209
Subtract 5832 from 6400 to get 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

Moving on to step 16:
When dividing 5680 by 648, we get 8 with a remainder of 496.
Use 8 as the next digit of our solution. 
Result so far: 18904.15432098
Subtract 5184 from 5680 to get 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Our division results in 18904.15432098 with a remaining 4.96e-07.