We divide 99981 by 2
We want to divide 99981 by 2.

On to step 1:
9 divided by 2 is 4 with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 8 away from 9, we end up with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 2

Going ahead to step 2:
If we divide 19 by 2, we get 9 and a remainder of 1.
The next digit of our result is 9. 
Result so far: 49.0
The remainder is 1 after subtracting 18 from 19.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 2

On to step 3:
If we divide 19 by 2, we get 9 and a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 499.0
The remainder is 1 after subtracting 18 from 19.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 2

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: 4999.0
If we subtract 18 from 18, we get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 2

Moving on to step 5:
2 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 49990.0
The remainder is 1 after subtracting 0 from 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 6:
2 can be fit into 10 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 49990.5
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 7:
If we divide 0 by 2, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 49990.5
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.

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: 49990.5
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.

After the division, we end up with 49990.5 and a remainder of 0.0.