57773 ÷ 20 
We're looking to find how many times 20 goes into 57773.

Let's proceed to step 1:
The number 20 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 20

On to step 2:
20 goes into 57 2 times with a remainder of 17.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 40 from 57 and we're left with 17.
Include the next digit (7) from the dividend after 17, then repeat: 177 / 20

Going ahead to step 3:
The number 20 fits into 177 8 times, leaving a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 28.0
Subtracting 160 from 177 leaves us with 17.
Include the next digit (7) from the dividend after 17, then repeat: 177 / 20

Advancing to step 4:
If we divide 177 by 20, we get 8 and a remainder of 17.
The number 8 becomes the next digit in our result. 
Result so far: 288.0
Subtract 160 from 177 to get 17.
Fetch the next digit (3) from the dividend, attach it to 17 and continue: 173 / 20

Let's proceed to step 5:
The number 20 fits into 173 8 times, leaving a remainder of 13.
Put 8 as the next digit of the answer. 
Result so far: 2888.0
Subtract 160 from 173 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 6:
The number 20 fits into 130 6 times, leaving a remainder of 10.
The next digit of our result is 6. 
Result so far: 2888.6
Subtracting 120 from 130 leaves us 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.

Step 7:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 2888.65
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 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2888.65
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 9:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 2888.65
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.

The final result is 2888.65 with a remainder of 0.0.