423997 divided by 2 
Let's see how many times 2 fits into 423997.

On to step 1:
When dividing 4 by 2, we get 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 0 after subtracting 4 from 4.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 2

Moving on to step 2:
If we divide 2 by 2, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we take 2 away from 2, we end up with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 2

Step 3:
The number 2 fits into 3 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 211.0
Deduct 2 from 3 and we're left with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 2

Let's proceed to step 4:
2 can be fit into 19 9 times, resulting in a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 2119.0
If we subtract 18 from 19, we get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 2

Going ahead to step 5:
The number 2 fits into 19 9 times, leaving a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 21199.0
The remainder is 1 after subtracting 18 from 19.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 2

Advancing to step 6:
17 divided by 2 is 8 with a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 211998.0
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:
10 divided by 2 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 211998.5
Subtracting 10 from 10 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.

Going ahead to step 8:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 211998.5
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.

Going ahead to step 9:
2 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 211998.5
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 result is 211998.5 with a remainder of 0.0.