We look at the division of 19056421 by 648 
Our goal is to divide 19056421 by 648.

On to step 1:
648 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 648

Going ahead to step 2:
648 goes into 19 0 times with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 19 after subtracting 0 from 19.
Take the next digit (0) from the dividend and append it to 19, then repeat: 190 / 648

Step 3:
190 divided by 648 is 0 with a remainder of 190.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 190 and we're left with 190.
Grab the next digit (5) from the dividend, add it to 190, then carry on: 1905 / 648

Advancing to step 4:
The number 648 fits into 1905 2 times, leaving a remainder of 609.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 1296 from 1905 to get 609.
Include the next digit (6) from the dividend after 609, then repeat: 6096 / 648

Advancing to step 5:
The number 648 fits into 6096 9 times, leaving a remainder of 264.
The next digit of our result is 9. 
Result so far: 29.0
If we take 5832 away from 6096, we end up with 264.
Fetch the next digit (4) from the dividend, attach it to 264 and continue: 2644 / 648

Step 6:
648 goes into 2644 4 times with a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 294.0
If we take 2592 away from 2644, we end up with 52.
Grab the next digit (2) from the dividend, add it to 52, then carry on: 522 / 648

Step 7:
522 divided by 648 is 0 with a remainder of 522.
The number 0 becomes the next digit in our result. 
Result so far: 2940.0
Subtracting 0 from 522 leaves us with 522.
Bring next digit (1) of the dividend behind the 522 and repeat the process: 5221 / 648

On to step 8:
5221 divided by 648 is 8 with a remainder of 37.
Put 8 as the next digit of the answer. 
Result so far: 29408.0
Deduct 5184 from 5221 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 9:
The number 648 fits into 370 0 times, leaving a remainder of 370.
The number 0 becomes the next digit in our result. 
Result so far: 29408.0
Subtract 0 from 370 to get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Advancing to step 10:
648 can be fit into 3700 5 times, resulting in a remainder of 460.
The next digit of our result is 5. 
Result so far: 29408.05
If we take 3240 away from 3700, we end up with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Moving on to step 11:
648 can be fit into 4600 7 times, resulting in a remainder of 64.
Use 7 as the next digit of our solution. 
Result so far: 29408.057
If we subtract 4536 from 4600, we 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.

Let's proceed to step 12:
If we divide 640 by 648, we get 0 and a remainder of 640.
The next digit of our result is 0. 
Result so far: 29408.057
If we take 0 away from 640, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Going ahead to step 13:
When dividing 6400 by 648, we get 9 with a remainder of 568.
Put 9 as the next digit of the answer. 
Result so far: 29408.05709
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.

On to step 14:
If we divide 5680 by 648, we get 8 and a remainder of 496.
Write down 8 as next digit of the result. 
Result so far: 29408.057098
If we subtract 5184 from 5680, we 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.

Let's proceed to step 15:
If we divide 4960 by 648, we get 7 and a remainder of 424.
The number 7 becomes the next digit in our result. 
Result so far: 29408.0570987
If we subtract 4536 from 4960, we get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Let's proceed to step 16:
When dividing 4240 by 648, we get 6 with a remainder of 352.
Put 6 as the next digit of the answer. 
Result so far: 29408.05709876
Subtract 3888 from 4240 to get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

The quotient of the division is 29408.05709876, and the remainder is 3.52e-07.