12781491 divided by 788 
Our goal is to divide 12781491 by 788.

Step 1:
788 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 788

Moving on to step 2:
The number 788 fits into 12 0 times, leaving a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Grab the next digit (7) from the dividend, add it to 12, then carry on: 127 / 788

On to step 3:
127 divided by 788 is 0 with a remainder of 127.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 127 to get 127.
Append the next digit (8) from the dividend to 127 and continue with: 1278 / 788

Step 4:
The number 788 fits into 1278 1 times, leaving a remainder of 490.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 788 from 1278 and we're left with 490.
Append the next digit (1) from the dividend to 490 and continue with: 4901 / 788

On to step 5:
When dividing 4901 by 788, we get 6 with a remainder of 173.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we take 4728 away from 4901, we end up with 173.
Fetch the next digit (4) from the dividend, attach it to 173 and continue: 1734 / 788

Step 6:
1734 divided by 788 is 2 with a remainder of 158.
Use 2 as the next digit of our solution. 
Result so far: 162.0
The remainder is 158 after subtracting 1576 from 1734.
Grab the next digit (9) from the dividend, add it to 158, then carry on: 1589 / 788

Let's proceed to step 7:
788 goes into 1589 2 times with a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 1622.0
Subtract 1576 from 1589 to get 13.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 788

Step 8:
When dividing 131 by 788, we get 0 with a remainder of 131.
Record the quotient 0 as the next digit in the result. 
Result so far: 16220.0
Deduct 0 from 131 and we're left with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Going ahead to step 9:
When dividing 1310 by 788, we get 1 with a remainder of 522.
The number 1 becomes the next digit in our result. 
Result so far: 16220.1
If we subtract 788 from 1310, we get 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

Going ahead to step 10:
When dividing 5220 by 788, we get 6 with a remainder of 492.
Write down 6 as next digit of the result. 
Result so far: 16220.16
Subtracting 4728 from 5220 leaves us with 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Advancing to step 11:
788 can be fit into 4920 6 times, resulting in a remainder of 192.
Put 6 as the next digit of the answer. 
Result so far: 16220.166
The remainder is 192 after subtracting 4728 from 4920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

The final outcome is 16220.166, with a leftover of 0.0192.