We look at the division of 308908 by 20 
Let's see how many times 20 fits into 308908.

Let's proceed to step 1:
3 divided by 20 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 20

Advancing to step 2:
30 divided by 20 is 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 10 after subtracting 20 from 30.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 20

Advancing to step 3:
20 can be fit into 108 5 times, resulting in a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we take 100 away from 108, we end up with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 20

Moving on to step 4:
The number 20 fits into 89 4 times, leaving a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 154.0
Subtracting 80 from 89 leaves us with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 20

Moving on to step 5:
20 can be fit into 90 4 times, resulting in a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 1544.0
Subtracting 80 from 90 leaves us with 10.
Include the next digit (8) from the dividend after 10, then repeat: 108 / 20

Going ahead to step 6:
108 divided by 20 is 5 with a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 15445.0
Subtract 100 from 108 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 7:
20 can be fit into 80 4 times, resulting in a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 15445.4
If we take 80 away from 80, 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.

Advancing to step 8:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 15445.4
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.

Step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 15445.4
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.

The final outcome is 15445.4, with a leftover of 0.0.