450354 ÷ 99 
Our goal is to divide 450354 by 99.

Let's proceed to step 1:
99 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 99

On to step 2:
99 can be fit into 45 0 times, resulting in a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Include the next digit (0) from the dividend after 45, then repeat: 450 / 99

Let's proceed to step 3:
If we divide 450 by 99, we get 4 and a remainder of 54.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 396 away from 450, we end up with 54.
Fetch the next digit (3) from the dividend, attach it to 54 and continue: 543 / 99

On to step 4:
99 goes into 543 5 times with a remainder of 48.
Write down 5 as next digit of the result. 
Result so far: 45.0
The remainder is 48 after subtracting 495 from 543.
Grab the next digit (5) from the dividend, add it to 48, then carry on: 485 / 99

Going ahead to step 5:
When dividing 485 by 99, we get 4 with a remainder of 89.
Use 4 as the next digit of our solution. 
Result so far: 454.0
If we subtract 396 from 485, we get 89.
Include the next digit (4) from the dividend after 89, then repeat: 894 / 99

Advancing to step 6:
The number 99 fits into 894 9 times, leaving a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 4549.0
If we take 891 away from 894, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
The number 99 fits into 30 0 times, leaving a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 4549.0
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 8:
99 goes into 300 3 times with a remainder of 3.
The next digit of our result is 3. 
Result so far: 4549.03
Subtracting 297 from 300 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
99 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 4549.03
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 10:
99 goes into 300 3 times with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 4549.0303
If we subtract 297 from 300, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 11:
30 divided by 99 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 4549.0303
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
If we divide 300 by 99, we get 3 and a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 4549.030303
The remainder is 3 after subtracting 297 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 13:
When dividing 30 by 99, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 4549.030303
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 14:
When dividing 300 by 99, we get 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 4549.03030303
If we take 297 away from 300, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 4549.03030303, with a leftover of 3e-09.