423016 divided by 15 
We're looking to find how many times 15 goes into 423016.

Step 1:
If we divide 4 by 15, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 15

Advancing to step 2:
15 can be fit into 42 2 times, resulting in a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 30 from 42, we get 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 15

Moving on to step 3:
15 goes into 123 8 times with a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 28.0
Subtracting 120 from 123 leaves us with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 15

Advancing to step 4:
15 can be fit into 30 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 282.0
If we subtract 30 from 30, we get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 15

Step 5:
1 divided by 15 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 2820.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 15

Let's proceed to step 6:
15 can be fit into 16 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 28201.0
If we subtract 15 from 16, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 15 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 28201.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
15 can be fit into 100 6 times, resulting in a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 28201.06
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
100 divided by 15 is 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 28201.066
If we take 90 away from 100, we end up with 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 final result is 28201.066 with a remainder of 0.001.