We look at the division of 393388 by 80 
We're looking to find how many times 80 goes into 393388.

Step 1:
The number 80 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 80

On to step 2:
39 divided by 80 is 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Bring next digit (3) of the dividend behind the 39 and repeat the process: 393 / 80

Going ahead to step 3:
When dividing 393 by 80, we get 4 with a remainder of 73.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 320 from 393 and we're left with 73.
Bring next digit (3) of the dividend behind the 73 and repeat the process: 733 / 80

Going ahead to step 4:
733 divided by 80 is 9 with a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
Subtract 720 from 733 to get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 80

Let's proceed to step 5:
138 divided by 80 is 1 with a remainder of 58.
The number 1 becomes the next digit in our result. 
Result so far: 491.0
The remainder is 58 after subtracting 80 from 138.
Append the next digit (8) from the dividend to 58 and continue with: 588 / 80

Advancing to step 6:
588 divided by 80 is 7 with a remainder of 28.
Use 7 as the next digit of our solution. 
Result so far: 4917.0
Deduct 560 from 588 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 7:
280 divided by 80 is 3 with a remainder of 40.
Use 3 as the next digit of our solution. 
Result so far: 4917.3
If we subtract 240 from 280, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 4917.35
The remainder is 0 after subtracting 400 from 400.
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:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4917.35
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.

On to step 10:
0 divided by 80 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4917.35
Subtract 0 from 0 to 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 result is 4917.35 with a remainder of 0.0.