12782018 ÷ 631 
Let's see how many times 631 fits into 12782018.

Moving on to step 1:
631 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 631

Step 2:
12 divided by 631 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Bring next digit (7) of the dividend behind the 12 and repeat the process: 127 / 631

Step 3:
631 goes into 127 0 times with a remainder of 127.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 127 and we're left with 127.
Include the next digit (8) from the dividend after 127, then repeat: 1278 / 631

On to step 4:
When dividing 1278 by 631, we get 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 1262 away from 1278, we end up with 16.
Include the next digit (2) from the dividend after 16, then repeat: 162 / 631

Let's proceed to step 5:
631 can be fit into 162 0 times, resulting in a remainder of 162.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Subtract 0 from 162 to get 162.
Grab the next digit (0) from the dividend, add it to 162, then carry on: 1620 / 631

Going ahead to step 6:
631 can be fit into 1620 2 times, resulting in a remainder of 358.
Write down 2 as next digit of the result. 
Result so far: 202.0
If we take 1262 away from 1620, we end up with 358.
Grab the next digit (1) from the dividend, add it to 358, then carry on: 3581 / 631

Moving on to step 7:
631 goes into 3581 5 times with a remainder of 426.
Use 5 as the next digit of our solution. 
Result so far: 2025.0
Deduct 3155 from 3581 and we're left with 426.
Take the next digit (8) from the dividend and append it to 426, then repeat: 4268 / 631

On to step 8:
631 goes into 4268 6 times with a remainder of 482.
Write down 6 as next digit of the result. 
Result so far: 20256.0
Subtract 3786 from 4268 to get 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

On to step 9:
631 can be fit into 4820 7 times, resulting in a remainder of 403.
Use 7 as the next digit of our solution. 
Result so far: 20256.7
If we subtract 4417 from 4820, we get 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Going ahead to step 10:
If we divide 4030 by 631, we get 6 and a remainder of 244.
The number 6 becomes the next digit in our result. 
Result so far: 20256.76
Subtracting 3786 from 4030 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Moving on to step 11:
631 can be fit into 2440 3 times, resulting in a remainder of 547.
Use 3 as the next digit of our solution. 
Result so far: 20256.763
Subtract 1893 from 2440 to get 547.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5470, and continue the process.

Advancing to step 12:
The number 631 fits into 5470 8 times, leaving a remainder of 422.
Write down 8 as next digit of the result. 
Result so far: 20256.7638
If we take 5048 away from 5470, we end up with 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

On to step 13:
When dividing 4220 by 631, we get 6 with a remainder of 434.
Put 6 as the next digit of the answer. 
Result so far: 20256.76386
Deduct 3786 from 4220 and we're left with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

On to step 14:
The number 631 fits into 4340 6 times, leaving a remainder of 554.
The number 6 becomes the next digit in our result. 
Result so far: 20256.763866
If we take 3786 away from 4340, we end up with 554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

The final outcome is 20256.763866, with a leftover of 5.54e-05.