We look at the division of 30187 by 20 
Our goal is to divide 30187 by 20.

Advancing to step 1:
When dividing 3 by 20, we get 0 with 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.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 20

Moving on to step 2:
The number 20 fits into 30 1 times, leaving a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 20 from 30 to get 10.
Take the next digit (1) from the dividend and append it to 10, then repeat: 101 / 20

Step 3:
20 can be fit into 101 5 times, resulting in a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we subtract 100 from 101, we get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 20

Step 4:
20 goes into 18 0 times with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 150.0
Subtracting 0 from 18 leaves us with 18.
Bring next digit (7) of the dividend behind the 18 and repeat the process: 187 / 20

Advancing to step 5:
If we divide 187 by 20, we get 9 and a remainder of 7.
The next digit of our result is 9. 
Result so far: 1509.0
If we subtract 180 from 187, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 6:
20 can be fit into 70 3 times, resulting in a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 1509.3
Subtract 60 from 70 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
If we divide 100 by 20, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 1509.35
Subtract 100 from 100 to 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 8:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1509.35
Subtract 0 from 0 to 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:
When dividing 0 by 20, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1509.35
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.

The final result is 1509.35 with a remainder of 0.0.