We're dividing 31413649 by 309 
Our goal is to divide 31413649 by 309.

Going ahead to step 1:
309 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 309

Step 2:
309 goes into 31 0 times with a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Fetch the next digit (4) from the dividend, attach it to 31 and continue: 314 / 309

Advancing to step 3:
When dividing 314 by 309, we get 1 with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 309 from 314 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 309

Going ahead to step 4:
309 goes into 51 0 times with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 51, we end up with 51.
Fetch the next digit (3) from the dividend, attach it to 51 and continue: 513 / 309

Let's proceed to step 5:
309 goes into 513 1 times with a remainder of 204.
Use 1 as the next digit of our solution. 
Result so far: 101.0
The remainder is 204 after subtracting 309 from 513.
Take the next digit (6) from the dividend and append it to 204, then repeat: 2046 / 309

On to step 6:
2046 divided by 309 is 6 with a remainder of 192.
The next digit of our result is 6. 
Result so far: 1016.0
The remainder is 192 after subtracting 1854 from 2046.
Fetch the next digit (4) from the dividend, attach it to 192 and continue: 1924 / 309

Advancing to step 7:
If we divide 1924 by 309, we get 6 and a remainder of 70.
The next digit of our result is 6. 
Result so far: 10166.0
If we take 1854 away from 1924, we end up with 70.
Include the next digit (9) from the dividend after 70, then repeat: 709 / 309

Advancing to step 8:
If we divide 709 by 309, we get 2 and a remainder of 91.
Write down 2 as next digit of the result. 
Result so far: 101662.0
Subtract 618 from 709 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Step 9:
309 can be fit into 910 2 times, resulting in a remainder of 292.
Use 2 as the next digit of our solution. 
Result so far: 101662.2
If we take 618 away from 910, we end up with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Let's proceed to step 10:
2920 divided by 309 is 9 with a remainder of 139.
Put 9 as the next digit of the answer. 
Result so far: 101662.29
If we take 2781 away from 2920, we end up with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Let's proceed to step 11:
1390 divided by 309 is 4 with a remainder of 154.
Write down 4 as next digit of the result. 
Result so far: 101662.294
If we take 1236 away from 1390, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Let's proceed to step 12:
309 goes into 1540 4 times with a remainder of 304.
Use 4 as the next digit of our solution. 
Result so far: 101662.2944
If we subtract 1236 from 1540, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

After the division, we end up with 101662.2944 and a remainder of 0.00304.