We look at the division of 30253 by 18 
We want to divide 30253 by 18.

On to step 1:
18 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 18

Going ahead to step 2:
The number 18 fits into 30 1 times, leaving a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 18 away from 30, we end up with 12.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 18

Step 3:
18 goes into 122 6 times with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
Subtracting 108 from 122 leaves us with 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 18

Step 4:
18 can be fit into 145 8 times, resulting in a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 168.0
If we subtract 144 from 145, we get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 18

Moving on to step 5:
18 can be fit into 13 0 times, resulting in a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 1680.0
Subtract 0 from 13 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 6:
18 goes into 130 7 times with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 1680.7
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
If we divide 40 by 18, we get 2 and a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 1680.72
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
18 goes into 40 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 1680.722
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 1680.722, with a leftover of 0.0004.