We divide 27890 by 18
We want to figure out the number of times 27890 can be divided by 18.

Going ahead to step 1:
If we divide 2 by 18, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 18

Step 2:
If we divide 27 by 18, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 9 after subtracting 18 from 27.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 18

Moving on to step 3:
If we divide 98 by 18, we get 5 and a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 90 away from 98, we end up with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 18

Advancing to step 4:
The number 18 fits into 89 4 times, leaving a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 154.0
Deduct 72 from 89 and we're left with 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 18

Going ahead to step 5:
18 goes into 170 9 times with a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 1549.0
Subtract 162 from 170 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 6:
If we divide 80 by 18, we get 4 and a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 1549.4
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 7:
18 goes into 80 4 times with a remainder of 8.
The next digit of our result is 4. 
Result so far: 1549.44
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 1549.44 with a remainder of 0.008.