We're dividing 12222612 by 783 
Let's see how many times 783 fits into 12222612.

Step 1:
When dividing 1 by 783, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 783

Step 2:
783 goes into 12 0 times with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Fetch the next digit (2) from the dividend, attach it to 12 and continue: 122 / 783

Moving on to step 3:
122 divided by 783 is 0 with a remainder of 122.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 122, we get 122.
Grab the next digit (2) from the dividend, add it to 122, then carry on: 1222 / 783

On to step 4:
783 goes into 1222 1 times with a remainder of 439.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 783 from 1222 and we're left with 439.
Take the next digit (2) from the dividend and append it to 439, then repeat: 4392 / 783

On to step 5:
783 can be fit into 4392 5 times, resulting in a remainder of 477.
Write down 5 as next digit of the result. 
Result so far: 15.0
Deduct 3915 from 4392 and we're left with 477.
Bring next digit (6) of the dividend behind the 477 and repeat the process: 4776 / 783

On to step 6:
783 goes into 4776 6 times with a remainder of 78.
Use 6 as the next digit of our solution. 
Result so far: 156.0
If we take 4698 away from 4776, we end up with 78.
Grab the next digit (1) from the dividend, add it to 78, then carry on: 781 / 783

Advancing to step 7:
The number 783 fits into 781 0 times, leaving a remainder of 781.
Put 0 as the next digit of the answer. 
Result so far: 1560.0
Subtract 0 from 781 to get 781.
Append the next digit (2) from the dividend to 781 and continue with: 7812 / 783

Step 8:
783 can be fit into 7812 9 times, resulting in a remainder of 765.
Use 9 as the next digit of our solution. 
Result so far: 15609.0
Subtract 7047 from 7812 to get 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

On to step 9:
The number 783 fits into 7650 9 times, leaving a remainder of 603.
The next digit of our result is 9. 
Result so far: 15609.9
If we subtract 7047 from 7650, we get 603.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6030, and continue the process.

Let's proceed to step 10:
When dividing 6030 by 783, we get 7 with a remainder of 549.
Write down 7 as next digit of the result. 
Result so far: 15609.97
If we take 5481 away from 6030, we end up with 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

Going ahead to step 11:
If we divide 5490 by 783, we get 7 and a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 15609.977
The remainder is 9 after subtracting 5481 from 5490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The final result is 15609.977 with a remainder of 0.0009.