390693 ÷ 80 
Let's see how many times 80 fits into 390693.

Step 1:
If we divide 3 by 80, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 80

Moving on to step 2:
39 divided by 80 is 0 with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 80

Step 3:
80 goes into 390 4 times with a remainder of 70.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 320 from 390 and we're left with 70.
Bring next digit (6) of the dividend behind the 70 and repeat the process: 706 / 80

On to step 4:
The number 80 fits into 706 8 times, leaving a remainder of 66.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
Subtract 640 from 706 to get 66.
Append the next digit (9) from the dividend to 66 and continue with: 669 / 80

Going ahead to step 5:
80 goes into 669 8 times with a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 488.0
Deduct 640 from 669 and we're left with 29.
Take the next digit (3) from the dividend and append it to 29, then repeat: 293 / 80

Let's proceed to step 6:
293 divided by 80 is 3 with a remainder of 53.
Record the quotient 3 as the next digit in the result. 
Result so far: 4883.0
The remainder is 53 after subtracting 240 from 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 7:
If we divide 530 by 80, we get 6 and a remainder of 50.
Put 6 as the next digit of the answer. 
Result so far: 4883.6
Subtract 480 from 530 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 8:
80 goes into 500 6 times with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 4883.66
The remainder is 20 after subtracting 480 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 4883.66 with a balance of 0.02.