594585 divided by 15 
Our goal is to divide 594585 by 15.

Advancing to step 1:
15 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 15

Moving on to step 2:
The number 15 fits into 59 3 times, leaving a remainder of 14.
The next digit of our result is 3. 
Result so far: 3.0
If we take 45 away from 59, we end up with 14.
Take the next digit (4) from the dividend and append it to 14, then repeat: 144 / 15

On to step 3:
15 can be fit into 144 9 times, resulting in a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 39.0
The remainder is 9 after subtracting 135 from 144.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 15

On to step 4:
If we divide 95 by 15, we get 6 and a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 396.0
Subtracting 90 from 95 leaves us with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 15

Let's proceed to step 5:
58 divided by 15 is 3 with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 3963.0
Subtract 45 from 58 to get 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 15

Let's proceed to step 6:
If we divide 135 by 15, we get 9 and a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 39639.0
Subtract 135 from 135 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
15 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 39639.0
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.

Advancing to step 8:
15 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 39639.0
Subtracting 0 from 0 leaves us 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.

The final outcome is 39639.0, with a leftover of 0.0.