Let's divide 389385 by 80
We want to divide 389385 by 80.

Advancing to step 1:
3 divided by 80 is 0 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.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 80

Going ahead to step 2:
When dividing 38 by 80, we get 0 with a remainder of 38.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 38 after subtracting 0 from 38.
Append the next digit (9) from the dividend to 38 and continue with: 389 / 80

Moving on to step 3:
When dividing 389 by 80, we get 4 with a remainder of 69.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 320 from 389 and we're left with 69.
Include the next digit (3) from the dividend after 69, then repeat: 693 / 80

Step 4:
The number 80 fits into 693 8 times, leaving a remainder of 53.
Write down 8 as next digit of the result. 
Result so far: 48.0
If we take 640 away from 693, we end up with 53.
Append the next digit (8) from the dividend to 53 and continue with: 538 / 80

Step 5:
538 divided by 80 is 6 with a remainder of 58.
Use 6 as the next digit of our solution. 
Result so far: 486.0
Subtracting 480 from 538 leaves us with 58.
Grab the next digit (5) from the dividend, add it to 58, then carry on: 585 / 80

On to step 6:
If we divide 585 by 80, we get 7 and a remainder of 25.
Use 7 as the next digit of our solution. 
Result so far: 4867.0
Subtracting 560 from 585 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 7:
If we divide 250 by 80, we get 3 and a remainder of 10.
The next digit of our result is 3. 
Result so far: 4867.3
The remainder is 10 after subtracting 240 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
The number 80 fits into 100 1 times, leaving a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 4867.31
Subtracting 80 from 100 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
200 divided by 80 is 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 4867.312
The remainder is 40 after subtracting 160 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 4867.3125
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 11:
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: 4867.3125
Subtracting 0 from 0 leaves us 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 12:
When dividing 0 by 80, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 4867.3125
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.

After the division, we end up with 4867.3125 and a remainder of 0.0.