We look at the division of 450640 by 99 
Our goal is to divide 450640 by 99.

Step 1:
The number 99 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 99

Let's proceed to step 2:
99 goes into 45 0 times with a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Append the next digit (0) from the dividend to 45 and continue with: 450 / 99

Let's proceed to step 3:
99 can be fit into 450 4 times, resulting in a remainder of 54.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 396 from 450 leaves us with 54.
Append the next digit (6) from the dividend to 54 and continue with: 546 / 99

Advancing to step 4:
99 can be fit into 546 5 times, resulting in a remainder of 51.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
Deduct 495 from 546 and we're left with 51.
Fetch the next digit (4) from the dividend, attach it to 51 and continue: 514 / 99

Moving on to step 5:
99 goes into 514 5 times with a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 455.0
Subtract 495 from 514 to get 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 99

Moving on to step 6:
If we divide 190 by 99, we get 1 and a remainder of 91.
Put 1 as the next digit of the answer. 
Result so far: 4551.0
If we take 99 away from 190, we end up with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Going ahead to step 7:
910 divided by 99 is 9 with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 4551.9
The remainder is 19 after subtracting 891 from 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 8:
If we divide 190 by 99, we get 1 and a remainder of 91.
Write down 1 as next digit of the result. 
Result so far: 4551.91
Subtract 99 from 190 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 9:
If we divide 910 by 99, we get 9 and a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 4551.919
Deduct 891 from 910 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 10:
The number 99 fits into 190 1 times, leaving a remainder of 91.
Record the quotient 1 as the next digit in the result. 
Result so far: 4551.9191
Deduct 99 from 190 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 11:
99 can be fit into 910 9 times, resulting in a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 4551.91919
The remainder is 19 after subtracting 891 from 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 12:
If we divide 190 by 99, we get 1 and a remainder of 91.
Write down 1 as next digit of the result. 
Result so far: 4551.919191
If we subtract 99 from 190, we get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 13:
If we divide 910 by 99, we get 9 and a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 4551.9191919
The remainder is 19 after subtracting 891 from 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 14:
190 divided by 99 is 1 with a remainder of 91.
The number 1 becomes the next digit in our result. 
Result so far: 4551.91919191
Subtracting 99 from 190 leaves us with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

The quotient of the division is 4551.91919191, and the remainder is 9.1e-08.