729159 ÷ 39 
We want to figure out the number of times 729159 can be divided by 39.

Step 1:
If we divide 7 by 39, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 39

Going ahead to step 2:
39 can be fit into 72 1 times, resulting in a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 39 from 72 and we're left with 33.
Bring next digit (9) of the dividend behind the 33 and repeat the process: 339 / 39

Advancing to step 3:
When dividing 339 by 39, we get 8 with a remainder of 27.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
The remainder is 27 after subtracting 312 from 339.
Take the next digit (1) from the dividend and append it to 27, then repeat: 271 / 39

On to step 4:
The number 39 fits into 271 6 times, leaving a remainder of 37.
The next digit of our result is 6. 
Result so far: 186.0
If we take 234 away from 271, we end up with 37.
Bring next digit (5) of the dividend behind the 37 and repeat the process: 375 / 39

Step 5:
The number 39 fits into 375 9 times, leaving a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 1869.0
If we take 351 away from 375, we end up with 24.
Grab the next digit (9) from the dividend, add it to 24, then carry on: 249 / 39

Advancing to step 6:
If we divide 249 by 39, we get 6 and a remainder of 15.
Put 6 as the next digit of the answer. 
Result so far: 18696.0
If we take 234 away from 249, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
150 divided by 39 is 3 with a remainder of 33.
Use 3 as the next digit of our solution. 
Result so far: 18696.3
The remainder is 33 after subtracting 117 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 8:
When dividing 330 by 39, we get 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 18696.38
Subtracting 312 from 330 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
When dividing 180 by 39, we get 4 with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 18696.384
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 10:
When dividing 240 by 39, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 18696.3846
Deduct 234 from 240 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 11:
When dividing 60 by 39, we get 1 with a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 18696.38461
Deduct 39 from 60 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 12:
If we divide 210 by 39, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 18696.384615
Subtracting 195 from 210 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 13:
39 can be fit into 150 3 times, resulting in a remainder of 33.
The next digit of our result is 3. 
Result so far: 18696.3846153
Subtract 117 from 150 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 14:
39 can be fit into 330 8 times, resulting in a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 18696.38461538
Deduct 312 from 330 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 18696.38461538 with a remainder of 1.8e-08.