We divide 399011 by 80
We want to figure out the number of times 399011 can be divided by 80.

Advancing to step 1:
When dividing 3 by 80, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 80

Going ahead to step 2:
When dividing 39 by 80, we get 0 with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Bring next digit (9) of the dividend behind the 39 and repeat the process: 399 / 80

On to step 3:
399 divided by 80 is 4 with a remainder of 79.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 320 from 399 leaves us with 79.
Take the next digit (0) from the dividend and append it to 79, then repeat: 790 / 80

Advancing to step 4:
When dividing 790 by 80, we get 9 with a remainder of 70.
Put 9 as the next digit of the answer. 
Result so far: 49.0
If we take 720 away from 790, we end up with 70.
Take the next digit (1) from the dividend and append it to 70, then repeat: 701 / 80

Going ahead to step 5:
80 goes into 701 8 times with a remainder of 61.
Write down 8 as next digit of the result. 
Result so far: 498.0
The remainder is 61 after subtracting 640 from 701.
Fetch the next digit (1) from the dividend, attach it to 61 and continue: 611 / 80

Step 6:
611 divided by 80 is 7 with a remainder of 51.
The next digit of our result is 7. 
Result so far: 4987.0
If we take 560 away from 611, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 7:
The number 80 fits into 510 6 times, leaving a remainder of 30.
The next digit of our result is 6. 
Result so far: 4987.6
If we subtract 480 from 510, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
80 goes into 300 3 times with a remainder of 60.
The number 3 becomes the next digit in our result. 
Result so far: 4987.63
Subtract 240 from 300 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 9:
80 goes into 600 7 times with a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 4987.637
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
80 goes into 400 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4987.6375
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.

Moving on to step 11:
If we divide 0 by 80, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 4987.6375
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.

Going ahead to step 12:
0 divided by 80 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4987.6375
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 quotient of the division is 4987.6375, and the remainder is 0.0.