We're dividing 12980413 by 618 
Let's see how many times 618 fits into 12980413.

Going ahead to step 1:
1 divided by 618 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
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 / 618

On to step 2:
618 can be fit into 12 0 times, resulting in a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 618

On to step 3:
The number 618 fits into 129 0 times, leaving a remainder of 129.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 129 to get 129.
Include the next digit (8) from the dividend after 129, then repeat: 1298 / 618

Let's proceed to step 4:
1298 divided by 618 is 2 with a remainder of 62.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 1236 from 1298 and we're left with 62.
Bring next digit (0) of the dividend behind the 62 and repeat the process: 620 / 618

Going ahead to step 5:
618 can be fit into 620 1 times, resulting in a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 21.0
Subtracting 618 from 620 leaves us with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 618

Advancing to step 6:
The number 618 fits into 24 0 times, leaving a remainder of 24.
The number 0 becomes the next digit in our result. 
Result so far: 210.0
The remainder is 24 after subtracting 0 from 24.
Append the next digit (1) from the dividend to 24 and continue with: 241 / 618

Moving on to step 7:
The number 618 fits into 241 0 times, leaving a remainder of 241.
The number 0 becomes the next digit in our result. 
Result so far: 2100.0
If we subtract 0 from 241, we get 241.
Grab the next digit (3) from the dividend, add it to 241, then carry on: 2413 / 618

Advancing to step 8:
The number 618 fits into 2413 3 times, leaving a remainder of 559.
The number 3 becomes the next digit in our result. 
Result so far: 21003.0
The remainder is 559 after subtracting 1854 from 2413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

Step 9:
The number 618 fits into 5590 9 times, leaving a remainder of 28.
The next digit of our result is 9. 
Result so far: 21003.9
Subtracting 5562 from 5590 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 10:
If we divide 280 by 618, we get 0 and a remainder of 280.
The number 0 becomes the next digit in our result. 
Result so far: 21003.9
If we take 0 away from 280, we end up 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.

Moving on to step 11:
2800 divided by 618 is 4 with a remainder of 328.
Record the quotient 4 as the next digit in the result. 
Result so far: 21003.904
Subtract 2472 from 2800 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 12:
3280 divided by 618 is 5 with a remainder of 190.
Put 5 as the next digit of the answer. 
Result so far: 21003.9045
Subtracting 3090 from 3280 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 13:
618 can be fit into 1900 3 times, resulting in a remainder of 46.
The number 3 becomes the next digit in our result. 
Result so far: 21003.90453
Subtracting 1854 from 1900 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 14:
460 divided by 618 is 0 with a remainder of 460.
Use 0 as the next digit of our solution. 
Result so far: 21003.90453
Subtract 0 from 460 to get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Advancing to step 15:
The number 618 fits into 4600 7 times, leaving a remainder of 274.
The number 7 becomes the next digit in our result. 
Result so far: 21003.9045307
Deduct 4326 from 4600 and we're left with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Going ahead to step 16:
618 can be fit into 2740 4 times, resulting in a remainder of 268.
Use 4 as the next digit of our solution. 
Result so far: 21003.90453074
If we take 2472 away from 2740, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

The final outcome is 21003.90453074, with a leftover of 2.68e-07.