We're dividing 486931 by 2 
Our goal is to divide 486931 by 2.

Going ahead to step 1:
2 goes into 4 2 times with a remainder of 0.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 0 after subtracting 4 from 4.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 2

Step 2:
2 goes into 8 4 times with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 24.0
Deduct 8 from 8 and we're left with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 2

Advancing to step 3:
When dividing 6 by 2, we get 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 243.0
If we take 6 away from 6, we end up with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 2

On to step 4:
2 goes into 9 4 times with a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 2434.0
Subtract 8 from 9 to get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 2

On to step 5:
2 goes into 13 6 times with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 24346.0
If we subtract 12 from 13, we get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 2

Going ahead to step 6:
If we divide 11 by 2, we get 5 and a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 243465.0
Deduct 10 from 11 and we're left 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 2 fits into 10 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 243465.5
The remainder is 0 after subtracting 10 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 243465.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 243465.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 243465.5, with a leftover of 0.0.