We look at the division of 453990 by 99 
We want to divide 453990 by 99.

Moving on to step 1:
The number 99 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 99

Advancing to step 2:
The number 99 fits into 45 0 times, leaving a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 45 to get 45.
Include the next digit (3) from the dividend after 45, then repeat: 453 / 99

Moving on to step 3:
99 can be fit into 453 4 times, resulting in a remainder of 57.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 396 away from 453, we end up with 57.
Take the next digit (9) from the dividend and append it to 57, then repeat: 579 / 99

Step 4:
If we divide 579 by 99, we get 5 and a remainder of 84.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
Subtract 495 from 579 to get 84.
Take the next digit (9) from the dividend and append it to 84, then repeat: 849 / 99

Moving on to step 5:
The number 99 fits into 849 8 times, leaving a remainder of 57.
Put 8 as the next digit of the answer. 
Result so far: 458.0
If we take 792 away from 849, we end up with 57.
Include the next digit (0) from the dividend after 57, then repeat: 570 / 99

Advancing to step 6:
99 goes into 570 5 times with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 4585.0
If we take 495 away from 570, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 7:
99 goes into 750 7 times with a remainder of 57.
Use 7 as the next digit of our solution. 
Result so far: 4585.7
Subtract 693 from 750 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 8:
99 goes into 570 5 times with a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 4585.75
Subtracting 495 from 570 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 9:
The number 99 fits into 750 7 times, leaving a remainder of 57.
Use 7 as the next digit of our solution. 
Result so far: 4585.757
If we subtract 693 from 750, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 10:
If we divide 570 by 99, we get 5 and a remainder of 75.
The next digit of our result is 5. 
Result so far: 4585.7575
Subtracting 495 from 570 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 11:
The number 99 fits into 750 7 times, leaving a remainder of 57.
Use 7 as the next digit of our solution. 
Result so far: 4585.75757
Subtracting 693 from 750 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 12:
99 goes into 570 5 times with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 4585.757575
Subtract 495 from 570 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 13:
When dividing 750 by 99, we get 7 with a remainder of 57.
Record the quotient 7 as the next digit in the result. 
Result so far: 4585.7575757
The remainder is 57 after subtracting 693 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 14:
When dividing 570 by 99, we get 5 with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 4585.75757575
Deduct 495 from 570 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

The quotient of the division is 4585.75757575, and the remainder is 7.5e-08.