342717 ÷ 39 
We're looking to find how many times 39 goes into 342717.

Step 1:
When dividing 3 by 39, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 39

On to step 2:
39 can be fit into 34 0 times, resulting in a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Append the next digit (2) from the dividend to 34 and continue with: 342 / 39

Advancing to step 3:
39 goes into 342 8 times with a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 312 from 342 leaves us with 30.
Append the next digit (7) from the dividend to 30 and continue with: 307 / 39

On to step 4:
307 divided by 39 is 7 with a remainder of 34.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
Deduct 273 from 307 and we're left with 34.
Bring next digit (1) of the dividend behind the 34 and repeat the process: 341 / 39

Moving on to step 5:
39 can be fit into 341 8 times, resulting in a remainder of 29.
Write down 8 as next digit of the result. 
Result so far: 878.0
If we take 312 away from 341, we end up with 29.
Take the next digit (7) from the dividend and append it to 29, then repeat: 297 / 39

Going ahead to step 6:
The number 39 fits into 297 7 times, leaving a remainder of 24.
The next digit of our result is 7. 
Result so far: 8787.0
Deduct 273 from 297 and we're left 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.

Moving on to step 7:
The number 39 fits into 240 6 times, leaving a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 8787.6
The remainder is 6 after subtracting 234 from 240.
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 8:
39 goes into 60 1 times with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 8787.61
Subtract 39 from 60 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 9:
210 divided by 39 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 8787.615
Subtract 195 from 210 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 10:
The number 39 fits into 150 3 times, leaving a remainder of 33.
Use 3 as the next digit of our solution. 
Result so far: 8787.6153
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 11:
If we divide 330 by 39, we get 8 and a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 8787.61538
If we take 312 away from 330, we end up 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 12:
When dividing 180 by 39, we get 4 with a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 8787.615384
Subtracting 156 from 180 leaves us 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.

Going ahead to step 13:
The number 39 fits into 240 6 times, leaving a remainder of 6.
The next digit of our result is 6. 
Result so far: 8787.6153846
Subtracting 234 from 240 leaves us 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.

Let's proceed to step 14:
The number 39 fits into 60 1 times, leaving a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 8787.61538461
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.

The quotient of the division is 8787.61538461, and the remainder is 2.1e-08.