We look at the division of 513993 by 15 
We want to figure out the number of times 513993 can be divided by 15.

Advancing to step 1:
If we divide 5 by 15, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 15

Let's proceed to step 2:
15 can be fit into 51 3 times, resulting in a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 45 from 51, we get 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 15

Let's proceed to step 3:
The number 15 fits into 63 4 times, leaving a remainder of 3.
The next digit of our result is 4. 
Result so far: 34.0
Subtracting 60 from 63 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 15

Moving on to step 4:
39 divided by 15 is 2 with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 342.0
If we take 30 away from 39, we end up with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 15

Moving on to step 5:
15 goes into 99 6 times with a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 3426.0
If we take 90 away from 99, we end up with 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 15

On to step 6:
93 divided by 15 is 6 with a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 34266.0
Deduct 90 from 93 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
30 divided by 15 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 34266.2
Subtracting 30 from 30 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.

Going ahead to step 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 34266.2
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.

Moving on to step 9:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 34266.2
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 34266.2, with a leftover of 0.0.