We look at the division of 679490 by 31 
Our goal is to divide 679490 by 31.

Step 1:
If we divide 6 by 31, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 31

Moving on to step 2:
The number 31 fits into 67 2 times, leaving a remainder of 5.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 62 from 67, we get 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 31

Advancing to step 3:
When dividing 59 by 31, we get 1 with a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 31 away from 59, we end up with 28.
Include the next digit (4) from the dividend after 28, then repeat: 284 / 31

Step 4:
The number 31 fits into 284 9 times, leaving a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 219.0
Subtracting 279 from 284 leaves us with 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 31

Going ahead to step 5:
31 can be fit into 59 1 times, resulting in a remainder of 28.
Use 1 as the next digit of our solution. 
Result so far: 2191.0
If we subtract 31 from 59, we get 28.
Fetch the next digit (0) from the dividend, attach it to 28 and continue: 280 / 31

Going ahead to step 6:
31 goes into 280 9 times with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 21919.0
If we take 279 away from 280, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
The number 31 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 21919.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
31 goes into 100 3 times with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 21919.03
If we take 93 away from 100, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 9:
31 can be fit into 70 2 times, resulting in a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 21919.032
Subtracting 62 from 70 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
The number 31 fits into 80 2 times, leaving a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 21919.0322
If we subtract 62 from 80, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 21919.0322 and a remainder of 0.00018.