409237 ÷ 2 
We're looking to find how many times 2 goes into 409237.

On to step 1:
If we divide 4 by 2, we get 2 and a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 4 from 4, we get 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 2

Let's proceed to step 2:
2 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 20.0
The remainder is 0 after subtracting 0 from 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 2

Step 3:
If we divide 9 by 2, we get 4 and a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 204.0
Subtract 8 from 9 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 2

Step 4:
The number 2 fits into 12 6 times, leaving a remainder of 0.
The next digit of our result is 6. 
Result so far: 2046.0
If we subtract 12 from 12, we get 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 2

Advancing to step 5:
When dividing 3 by 2, we get 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 20461.0
Deduct 2 from 3 and we're left with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 2

Advancing to step 6:
2 can be fit into 17 8 times, resulting in a remainder of 1.
The next digit of our result is 8. 
Result so far: 204618.0
Subtract 16 from 17 to get 1.
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:
If we divide 10 by 2, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 204618.5
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.

Advancing to step 8:
2 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 204618.5
Subtract 0 from 0 to 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.

Advancing to step 9:
2 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 204618.5
Subtract 0 from 0 to 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.

After the division, we end up with 204618.5 and a remainder of 0.0.