Let's divide 143729 by 80
We want to figure out the number of times 143729 can be divided by 80.

Step 1:
80 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 80

On to step 2:
14 divided by 80 is 0 with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Include the next digit (3) from the dividend after 14, then repeat: 143 / 80

Advancing to step 3:
143 divided by 80 is 1 with a remainder of 63.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 63 after subtracting 80 from 143.
Fetch the next digit (7) from the dividend, attach it to 63 and continue: 637 / 80

Let's proceed to step 4:
The number 80 fits into 637 7 times, leaving a remainder of 77.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 560 from 637 leaves us with 77.
Fetch the next digit (2) from the dividend, attach it to 77 and continue: 772 / 80

On to step 5:
When dividing 772 by 80, we get 9 with a remainder of 52.
Use 9 as the next digit of our solution. 
Result so far: 179.0
Subtracting 720 from 772 leaves us with 52.
Include the next digit (9) from the dividend after 52, then repeat: 529 / 80

Advancing to step 6:
If we divide 529 by 80, we get 6 and a remainder of 49.
Put 6 as the next digit of the answer. 
Result so far: 1796.0
If we take 480 away from 529, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 7:
80 can be fit into 490 6 times, resulting in a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 1796.6
If we take 480 away from 490, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
When dividing 100 by 80, we get 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 1796.61
The remainder is 20 after subtracting 80 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
80 can be fit into 200 2 times, resulting in a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 1796.612
If we subtract 160 from 200, 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.

Let's proceed to step 10:
When dividing 400 by 80, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1796.6125
If we subtract 400 from 400, 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 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1796.6125
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.

Step 12:
80 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1796.6125
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 1796.6125 and a remainder of 0.0.