305800 divided by 20 
We want to divide 305800 by 20.

On to step 1:
20 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 20

Moving on to step 2:
The number 20 fits into 30 1 times, leaving a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 20 from 30 to get 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 20

Let's proceed to step 3:
If we divide 105 by 20, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we take 100 away from 105, we end up with 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 20

Moving on to step 4:
20 goes into 58 2 times with a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 152.0
Subtracting 40 from 58 leaves us with 18.
Fetch the next digit (0) from the dividend, attach it to 18 and continue: 180 / 20

Step 5:
The number 20 fits into 180 9 times, leaving a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 1529.0
Subtracting 180 from 180 leaves us with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 20

Step 6:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15290.0
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.

On to step 7:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 15290.0
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.

Moving on to step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 15290.0
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 outcome is 15290.0, with a leftover of 0.0.