729719 ÷ 80 
We want to figure out the number of times 729719 can be divided by 80.

Step 1:
80 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 80

Step 2:
When dividing 72 by 80, we get 0 with a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 72, we get 72.
Grab the next digit (9) from the dividend, add it to 72, then carry on: 729 / 80

Advancing to step 3:
If we divide 729 by 80, we get 9 and a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we subtract 720 from 729, we get 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 80

Going ahead to step 4:
80 can be fit into 97 1 times, resulting in a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 91.0
Deduct 80 from 97 and we're left with 17.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 80

Let's proceed to step 5:
When dividing 171 by 80, we get 2 with a remainder of 11.
Put 2 as the next digit of the answer. 
Result so far: 912.0
If we subtract 160 from 171, we get 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 80

Let's proceed to step 6:
When dividing 119 by 80, we get 1 with a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 9121.0
Subtract 80 from 119 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 7:
The number 80 fits into 390 4 times, leaving a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 9121.4
Subtract 320 from 390 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 8:
If we divide 700 by 80, we get 8 and a remainder of 60.
Record the quotient 8 as the next digit in the result. 
Result so far: 9121.48
Subtract 640 from 700 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.

Going ahead to step 9:
The number 80 fits into 600 7 times, leaving a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 9121.487
Subtract 560 from 600 to 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.

On to step 10:
80 goes into 400 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 9121.4875
Deduct 400 from 400 and we're left 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 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 9121.4875
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.
Use 0 as the next digit of our solution. 
Result so far: 9121.4875
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.

Our division results in 9121.4875 with a remaining 0.0.