454079 ÷ 45 
We want to figure out the number of times 454079 can be divided by 45.

Going ahead to step 1:
4 divided by 45 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
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 / 45

Moving on to step 2:
45 goes into 45 1 times with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 45 from 45, we get 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 45

Step 3:
45 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 45

Moving on to step 4:
40 divided by 45 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 100.0
Deduct 0 from 40 and we're left with 40.
Fetch the next digit (7) from the dividend, attach it to 40 and continue: 407 / 45

On to step 5:
When dividing 407 by 45, we get 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 1009.0
Deduct 405 from 407 and we're left with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 45

Advancing to step 6:
45 goes into 29 0 times with a remainder of 29.
The number 0 becomes the next digit in our result. 
Result so far: 10090.0
Subtracting 0 from 29 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 7:
When dividing 290 by 45, we get 6 with a remainder of 20.
The next digit of our result is 6. 
Result so far: 10090.6
Deduct 270 from 290 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
45 can be fit into 200 4 times, resulting in a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 10090.64
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
200 divided by 45 is 4 with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 10090.644
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 10090.644 and a remainder of 0.002.