28907 ÷ 20 
Let's see how many times 20 fits into 28907.

Step 1:
2 divided by 20 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 20

Let's proceed to step 2:
28 divided by 20 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 20 from 28, we get 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 20

Going ahead to step 3:
89 divided by 20 is 4 with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 14.0
The remainder is 9 after subtracting 80 from 89.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 20

Step 4:
20 can be fit into 90 4 times, resulting in a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 144.0
The remainder is 10 after subtracting 80 from 90.
Append the next digit (7) from the dividend to 10 and continue with: 107 / 20

Going ahead to step 5:
The number 20 fits into 107 5 times, leaving a remainder of 7.
Put 5 as the next digit of the answer. 
Result so far: 1445.0
Subtract 100 from 107 to 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.

Let's proceed to step 6:
70 divided by 20 is 3 with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 1445.3
If we take 60 away from 70, we end up 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.
Write down 5 as next digit of the result. 
Result so far: 1445.35
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.

Moving on to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1445.35
If we subtract 0 from 0, we 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:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1445.35
Deduct 0 from 0 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.

After the division, we end up with 1445.35 and a remainder of 0.0.