831729 ÷ 39 
We want to figure out the number of times 831729 can be divided by 39.

Advancing to step 1:
If we divide 8 by 39, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 39

Moving on to step 2:
39 goes into 83 2 times with a remainder of 5.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 78 from 83 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 39

Step 3:
The number 39 fits into 51 1 times, leaving a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Deduct 39 from 51 and we're left with 12.
Include the next digit (7) from the dividend after 12, then repeat: 127 / 39

Step 4:
The number 39 fits into 127 3 times, leaving a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 213.0
Subtract 117 from 127 to get 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 39

Step 5:
39 goes into 102 2 times with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 2132.0
If we subtract 78 from 102, we get 24.
Grab the next digit (9) from the dividend, add it to 24, then carry on: 249 / 39

Advancing to step 6:
The number 39 fits into 249 6 times, leaving a remainder of 15.
Put 6 as the next digit of the answer. 
Result so far: 21326.0
The remainder is 15 after subtracting 234 from 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 7:
150 divided by 39 is 3 with a remainder of 33.
Put 3 as the next digit of the answer. 
Result so far: 21326.3
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.

Going ahead to step 8:
When dividing 330 by 39, we get 8 with a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 21326.38
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.

Going ahead to step 9:
180 divided by 39 is 4 with a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 21326.384
Subtract 156 from 180 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
When dividing 240 by 39, we get 6 with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 21326.3846
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.

Advancing to step 11:
39 goes into 60 1 times with a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 21326.38461
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.

Moving on to 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: 21326.384615
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.

Moving on to step 13:
150 divided by 39 is 3 with a remainder of 33.
Put 3 as the next digit of the answer. 
Result so far: 21326.3846153
Deduct 117 from 150 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 14:
When dividing 330 by 39, we get 8 with a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 21326.38461538
Subtract 312 from 330 to get 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 outcome is 21326.38461538, with a leftover of 1.8e-08.