We look at the division of 12747429 by 409 
We're looking to find how many times 409 goes into 12747429.

On to step 1:
409 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
Subtract 0 from 1 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 409

Moving on to step 2:
409 goes into 12 0 times with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Grab the next digit (7) from the dividend, add it to 12, then carry on: 127 / 409

Step 3:
The number 409 fits into 127 0 times, leaving a remainder of 127.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 127, we end up with 127.
Fetch the next digit (4) from the dividend, attach it to 127 and continue: 1274 / 409

Step 4:
1274 divided by 409 is 3 with a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 47 after subtracting 1227 from 1274.
Take the next digit (7) from the dividend and append it to 47, then repeat: 477 / 409

Going ahead to step 5:
409 goes into 477 1 times with a remainder of 68.
Write down 1 as next digit of the result. 
Result so far: 31.0
Subtract 409 from 477 to get 68.
Take the next digit (4) from the dividend and append it to 68, then repeat: 684 / 409

Moving on to step 6:
If we divide 684 by 409, we get 1 and a remainder of 275.
Record the quotient 1 as the next digit in the result. 
Result so far: 311.0
The remainder is 275 after subtracting 409 from 684.
Append the next digit (2) from the dividend to 275 and continue with: 2752 / 409

Step 7:
2752 divided by 409 is 6 with a remainder of 298.
Put 6 as the next digit of the answer. 
Result so far: 3116.0
Deduct 2454 from 2752 and we're left with 298.
Bring next digit (9) of the dividend behind the 298 and repeat the process: 2989 / 409

On to step 8:
409 goes into 2989 7 times with a remainder of 126.
Put 7 as the next digit of the answer. 
Result so far: 31167.0
The remainder is 126 after subtracting 2863 from 2989.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Advancing to step 9:
409 can be fit into 1260 3 times, resulting in a remainder of 33.
Put 3 as the next digit of the answer. 
Result so far: 31167.3
If we take 1227 away from 1260, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 10:
409 can be fit into 330 0 times, resulting in a remainder of 330.
Put 0 as the next digit of the answer. 
Result so far: 31167.3
Subtracting 0 from 330 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 11:
409 can be fit into 3300 8 times, resulting in a remainder of 28.
The next digit of our result is 8. 
Result so far: 31167.308
Deduct 3272 from 3300 and we're left 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.

Going ahead to step 12:
280 divided by 409 is 0 with a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 31167.308
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 13:
If we divide 2800 by 409, we get 6 and a remainder of 346.
Put 6 as the next digit of the answer. 
Result so far: 31167.30806
Deduct 2454 from 2800 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Advancing to step 14:
409 goes into 3460 8 times with a remainder of 188.
The number 8 becomes the next digit in our result. 
Result so far: 31167.308068
If we take 3272 away from 3460, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Going ahead to step 15:
409 goes into 1880 4 times with a remainder of 244.
The number 4 becomes the next digit in our result. 
Result so far: 31167.3080684
Subtracting 1636 from 1880 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.

Let's proceed to step 16:
The number 409 fits into 2440 5 times, leaving a remainder of 395.
The number 5 becomes the next digit in our result. 
Result so far: 31167.30806845
If we take 2045 away from 2440, we end up with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

The final result is 31167.30806845 with a remainder of 3.95e-07.