We're dividing 513918 by 15 
Our goal is to divide 513918 by 15.

Let's proceed to step 1:
The number 15 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 15

Step 2:
The number 15 fits into 51 3 times, leaving a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 45 from 51 and we're left with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 15

Step 3:
15 goes into 63 4 times with a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 34.0
Deduct 60 from 63 and we're left with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 15

Going ahead to step 4:
39 divided by 15 is 2 with a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 342.0
The remainder is 9 after subtracting 30 from 39.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 15

Advancing to step 5:
The number 15 fits into 91 6 times, leaving a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 3426.0
Subtracting 90 from 91 leaves us with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 15

Advancing to step 6:
When dividing 18 by 15, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 34261.0
If we take 15 away from 18, we end up 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.

On to step 7:
The number 15 fits into 30 2 times, leaving a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 34261.2
The remainder is 0 after subtracting 30 from 30.
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:
0 divided by 15 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 34261.2
If we subtract 0 from 0, we 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.

Going ahead to step 9:
The number 15 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 34261.2
If we subtract 0 from 0, we 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.

After the division, we end up with 34261.2 and a remainder of 0.0.