405285 divided by 15 
We want to figure out the number of times 405285 can be divided by 15.

On to step 1:
When dividing 4 by 15, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 15

Moving on to step 2:
40 divided by 15 is 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 30 from 40 leaves us with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 15

Advancing to step 3:
15 goes into 105 7 times with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Deduct 105 from 105 and we're left with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 15

Moving on to step 4:
If we divide 2 by 15, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 270.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 15

Moving on to step 5:
28 divided by 15 is 1 with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 2701.0
The remainder is 13 after subtracting 15 from 28.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 15

Advancing to step 6:
15 can be fit into 135 9 times, resulting in a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 27019.0
The remainder is 0 after subtracting 135 from 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
15 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 27019.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 27019.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 27019.0 with a remaining 0.0.