We look at the division of 406929 by 31 
Let's see how many times 31 fits into 406929.

On to step 1:
If we divide 4 by 31, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 31

Let's proceed to step 2:
31 can be fit into 40 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 31 from 40 to get 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 31

On to step 3:
96 divided by 31 is 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 3 after subtracting 93 from 96.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 31

Step 4:
If we divide 39 by 31, we get 1 and a remainder of 8.
The next digit of our result is 1. 
Result so far: 131.0
Subtract 31 from 39 to get 8.
Take the next digit (2) from the dividend and append it to 8, then repeat: 82 / 31

Step 5:
The number 31 fits into 82 2 times, leaving a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 1312.0
Subtract 62 from 82 to get 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 31

On to step 6:
When dividing 209 by 31, we get 6 with a remainder of 23.
Record the quotient 6 as the next digit in the result. 
Result so far: 13126.0
If we subtract 186 from 209, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 7:
If we divide 230 by 31, we get 7 and a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 13126.7
If we take 217 away from 230, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 8:
The number 31 fits into 130 4 times, leaving a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 13126.74
The remainder is 6 after subtracting 124 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 9:
When dividing 60 by 31, we get 1 with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 13126.741
If we subtract 31 from 60, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 10:
290 divided by 31 is 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 13126.7419
Deduct 279 from 290 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 11:
110 divided by 31 is 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 13126.74193
Subtract 93 from 110 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 12:
When dividing 170 by 31, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 13126.741935
Deduct 155 from 170 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 13:
31 goes into 150 4 times with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 13126.7419354
Subtracting 124 from 150 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 14:
When dividing 260 by 31, we get 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 13126.74193548
Subtract 248 from 260 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 13126.74193548, with a leftover of 1.2e-08.