159973 ÷ 80 
Let's see how many times 80 fits into 159973.

Step 1:
If we divide 1 by 80, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 80

Step 2:
80 goes into 15 0 times with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 80

Step 3:
80 can be fit into 159 1 times, resulting in a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 80 from 159, we get 79.
Take the next digit (9) from the dividend and append it to 79, then repeat: 799 / 80

On to step 4:
80 can be fit into 799 9 times, resulting in a remainder of 79.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 720 from 799, we get 79.
Append the next digit (7) from the dividend to 79 and continue with: 797 / 80

Step 5:
797 divided by 80 is 9 with a remainder of 77.
The number 9 becomes the next digit in our result. 
Result so far: 199.0
The remainder is 77 after subtracting 720 from 797.
Take the next digit (3) from the dividend and append it to 77, then repeat: 773 / 80

Step 6:
The number 80 fits into 773 9 times, leaving a remainder of 53.
The number 9 becomes the next digit in our result. 
Result so far: 1999.0
If we subtract 720 from 773, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 7:
The number 80 fits into 530 6 times, leaving a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 1999.6
Subtracting 480 from 530 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
500 divided by 80 is 6 with a remainder of 20.
The next digit of our result is 6. 
Result so far: 1999.66
If we take 480 away from 500, we end up 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.

In conclusion, the division gives 1999.66 with a balance of 0.02.