439840 ÷ 45 
We want to figure out the number of times 439840 can be divided by 45.

Going ahead to step 1:
If we divide 4 by 45, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 45

Going ahead to step 2:
43 divided by 45 is 0 with a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Take the next digit (9) from the dividend and append it to 43, then repeat: 439 / 45

Going ahead to step 3:
If we divide 439 by 45, we get 9 and a remainder of 34.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 405 from 439 leaves us with 34.
Fetch the next digit (8) from the dividend, attach it to 34 and continue: 348 / 45

Advancing to step 4:
The number 45 fits into 348 7 times, leaving a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 97.0
If we take 315 away from 348, we end up with 33.
Bring next digit (4) of the dividend behind the 33 and repeat the process: 334 / 45

Let's proceed to step 5:
If we divide 334 by 45, we get 7 and a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 977.0
Subtracting 315 from 334 leaves us with 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 45

Moving on to step 6:
When dividing 190 by 45, we get 4 with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 9774.0
If we subtract 180 from 190, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
The number 45 fits into 100 2 times, leaving a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 9774.2
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
45 can be fit into 100 2 times, resulting in a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 9774.22
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 9774.22, and the remainder is 0.01.