339786 ÷ 2 
Our goal is to divide 339786 by 2.

Advancing to step 1:
2 can be fit into 3 1 times, resulting in a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 2 from 3, we get 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 2

On to step 2:
When dividing 13 by 2, we get 6 with a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
The remainder is 1 after subtracting 12 from 13.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 2

Going ahead to step 3:
When dividing 19 by 2, we get 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 169.0
Subtract 18 from 19 to get 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 2

Moving on to step 4:
2 can be fit into 17 8 times, resulting in a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 1698.0
Subtracting 16 from 17 leaves us with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 2

Advancing to step 5:
The number 2 fits into 18 9 times, leaving a remainder of 0.
The next digit of our result is 9. 
Result so far: 16989.0
Subtract 18 from 18 to get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 2

Let's proceed to step 6:
6 divided by 2 is 3 with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 169893.0
Deduct 6 from 6 and we're left with 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 7:
If we divide 0 by 2, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 169893.0
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 8:
When dividing 0 by 2, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 169893.0
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 169893.0, with a leftover of 0.0.