Let's divide 513891 by 18
Our goal is to divide 513891 by 18.

Moving on to step 1:
18 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 18

Going ahead to step 2:
The number 18 fits into 51 2 times, leaving a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 36 from 51 to get 15.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 18

On to step 3:
The number 18 fits into 153 8 times, leaving a remainder of 9.
Use 8 as the next digit of our solution. 
Result so far: 28.0
If we take 144 away from 153, we end up with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 18

Moving on to step 4:
The number 18 fits into 98 5 times, leaving a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 285.0
Subtract 90 from 98 to get 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 18

Going ahead to step 5:
When dividing 89 by 18, we get 4 with a remainder of 17.
Put 4 as the next digit of the answer. 
Result so far: 2854.0
If we take 72 away from 89, we end up with 17.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 18

Going ahead to step 6:
18 can be fit into 171 9 times, resulting in a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 28549.0
Subtracting 162 from 171 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
When dividing 90 by 18, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 28549.5
If we take 90 away from 90, 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.

Step 8:
The number 18 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28549.5
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.

Step 9:
18 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 28549.5
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.

The quotient of the division is 28549.5, and the remainder is 0.0.