We look at the division of 686338 by 31 
We want to divide 686338 by 31.

Advancing to step 1:
If we divide 6 by 31, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 31

Going ahead to step 2:
The number 31 fits into 68 2 times, leaving a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 6 after subtracting 62 from 68.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 31

On to step 3:
When dividing 66 by 31, we get 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 22.0
Subtracting 62 from 66 leaves us with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 31

On to step 4:
The number 31 fits into 43 1 times, leaving a remainder of 12.
The next digit of our result is 1. 
Result so far: 221.0
Subtract 31 from 43 to get 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 31

Let's proceed to step 5:
When dividing 123 by 31, we get 3 with a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 2213.0
Subtract 93 from 123 to get 30.
Take the next digit (8) from the dividend and append it to 30, then repeat: 308 / 31

Let's proceed to step 6:
31 can be fit into 308 9 times, resulting in a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 22139.0
Subtracting 279 from 308 leaves us with 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 7:
When dividing 290 by 31, we get 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 22139.9
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.

Let's proceed to step 8:
31 can be fit into 110 3 times, resulting in a remainder of 17.
The next digit of our result is 3. 
Result so far: 22139.93
Deduct 93 from 110 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 9:
When dividing 170 by 31, we get 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 22139.935
If we subtract 155 from 170, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 10:
If we divide 150 by 31, we get 4 and a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 22139.9354
The remainder is 26 after subtracting 124 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 11:
31 can be fit into 260 8 times, resulting in a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 22139.93548
The remainder is 12 after subtracting 248 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
The number 31 fits into 120 3 times, leaving a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 22139.935483
Subtract 93 from 120 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 13:
The number 31 fits into 270 8 times, leaving a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 22139.9354838
The remainder is 22 after subtracting 248 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 14:
When dividing 220 by 31, we get 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 22139.93548387
If we subtract 217 from 220, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 22139.93548387, and the remainder is 3e-09.