We look at the division of 305977 by 20 
We want to figure out the number of times 305977 can be divided by 20.

Advancing to step 1:
20 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 20

Step 2:
30 divided by 20 is 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 20 from 30 leaves us with 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 20

Step 3:
105 divided by 20 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 100 away from 105, we end up with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 20

Moving on to step 4:
20 can be fit into 59 2 times, resulting in a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 152.0
Subtracting 40 from 59 leaves us with 19.
Append the next digit (7) from the dividend to 19 and continue with: 197 / 20

Step 5:
20 can be fit into 197 9 times, resulting in a remainder of 17.
Record the quotient 9 as the next digit in the result. 
Result so far: 1529.0
Subtracting 180 from 197 leaves us with 17.
Take the next digit (7) from the dividend and append it to 17, then repeat: 177 / 20

Let's proceed to step 6:
20 goes into 177 8 times with a remainder of 17.
The number 8 becomes the next digit in our result. 
Result so far: 15298.0
If we take 160 away from 177, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 7:
20 can be fit into 170 8 times, resulting in a remainder of 10.
The next digit of our result is 8. 
Result so far: 15298.8
Deduct 160 from 170 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.

Going ahead to step 8:
100 divided by 20 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 15298.85
If we take 100 away from 100, 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.

Step 9:
0 divided by 20 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 15298.85
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.

Going ahead to step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 15298.85
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.

The final outcome is 15298.85, with a leftover of 0.0.