804423 ÷ 2 
We're looking to find how many times 2 goes into 804423.

On to step 1:
2 can be fit into 8 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 8 from 8 leaves us with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 2

On to step 2:
2 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 40.0
Deduct 0 from 0 and we're left with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 2

Going ahead to step 3:
If we divide 4 by 2, we get 2 and a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 402.0
If we take 4 away from 4, we end up with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 2

Advancing to step 4:
When dividing 4 by 2, we get 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 4022.0
Deduct 4 from 4 and we're left with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 2

Moving on to step 5:
2 goes into 2 1 times with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 40221.0
If we subtract 2 from 2, we get 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 2

On to step 6:
2 can be fit into 3 1 times, resulting in a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 402211.0
Subtract 2 from 3 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.

Moving on to step 7:
If we divide 10 by 2, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 402211.5
Deduct 10 from 10 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.

Going ahead to step 8:
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: 402211.5
If we take 0 away from 0, we end up 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 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 402211.5
The remainder is 0 after subtracting 0 from 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 402211.5 and a remainder of 0.0.