We look at the division of 20889 by 20 
We want to divide 20889 by 20.

Moving on to step 1:
2 divided by 20 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 20

Going ahead to step 2:
20 goes into 20 1 times with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 20 from 20 to get 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 20

On to step 3:
20 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 20

Going ahead to step 4:
20 goes into 88 4 times with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 104.0
Deduct 80 from 88 and we're left with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 20

Moving on to step 5:
When dividing 89 by 20, we get 4 with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 1044.0
The remainder is 9 after subtracting 80 from 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 6:
If we divide 90 by 20, we get 4 and a remainder of 10.
The next digit of our result is 4. 
Result so far: 1044.4
Deduct 80 from 90 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
When dividing 100 by 20, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 1044.45
Deduct 100 from 100 and we're left 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:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 1044.45
The remainder is 0 after subtracting 0 from 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:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1044.45
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.

After the division, we end up with 1044.45 and a remainder of 0.0.