We divide 309869 by 2
Let's see how many times 2 fits into 309869.

Going ahead to step 1:
When dividing 3 by 2, we get 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 2 from 3 leaves us with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 2

Step 2:
2 goes into 10 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we subtract 10 from 10, we get 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 2

Let's proceed to step 3:
When dividing 9 by 2, we get 4 with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 154.0
Subtracting 8 from 9 leaves us with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 2

Going ahead to step 4:
2 goes into 18 9 times with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 1549.0
The remainder is 0 after subtracting 18 from 18.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 2

Let's proceed to step 5:
When dividing 6 by 2, we get 3 with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 15493.0
Deduct 6 from 6 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 2

Let's proceed to step 6:
2 goes into 9 4 times with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 154934.0
The remainder is 1 after subtracting 8 from 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
2 goes into 10 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 154934.5
If we subtract 10 from 10, 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.

Moving on to step 8:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 154934.5
Subtracting 0 from 0 leaves us 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.

Advancing to step 9:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 154934.5
Subtracting 0 from 0 leaves us 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.

After the division, we end up with 154934.5 and a remainder of 0.0.