We divide 455990 by 2
We want to figure out the number of times 455990 can be divided by 2.

Going ahead to step 1:
4 divided by 2 is 2 with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 0 after subtracting 4 from 4.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 2

On to step 2:
2 can be fit into 5 2 times, resulting in a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Deduct 4 from 5 and we're left with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 2

On to step 3:
15 divided by 2 is 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 227.0
If we take 14 away from 15, we end up with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 2

Moving on to step 4:
2 goes into 19 9 times with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 2279.0
The remainder is 1 after subtracting 18 from 19.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 2

Let's proceed to step 5:
When dividing 19 by 2, we get 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 22799.0
Subtract 18 from 19 to get 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 2

Advancing to step 6:
2 goes into 10 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 227995.0
If we take 10 away from 10, 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.

On to step 7:
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: 227995.0
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 8:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 227995.0
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.

The quotient of the division is 227995.0, and the remainder is 0.0.