300904 ÷ 18 
We want to divide 300904 by 18.

Let's proceed to step 1:
18 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 18

Step 2:
18 goes into 30 1 times with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 12 after subtracting 18 from 30.
Take the next digit (0) from the dividend and append it to 12, then repeat: 120 / 18

Going ahead to step 3:
18 goes into 120 6 times with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 108 away from 120, we end up with 12.
Take the next digit (9) from the dividend and append it to 12, then repeat: 129 / 18

Advancing to step 4:
129 divided by 18 is 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 167.0
Subtract 126 from 129 to get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 18

Let's proceed to step 5:
If we divide 30 by 18, we get 1 and a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1671.0
Deduct 18 from 30 and we're left with 12.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 18

Advancing to step 6:
If we divide 124 by 18, we get 6 and a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 16716.0
Deduct 108 from 124 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
18 can be fit into 160 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 16716.8
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 8:
160 divided by 18 is 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 16716.88
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 16716.88, and the remainder is 0.016.