We're dividing 135242 by 39 
We're looking to find how many times 39 goes into 135242.

Advancing to step 1:
If we divide 1 by 39, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 39

Step 2:
If we divide 13 by 39, we get 0 and a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 39

Step 3:
The number 39 fits into 135 3 times, leaving a remainder of 18.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 18 after subtracting 117 from 135.
Fetch the next digit (2) from the dividend, attach it to 18 and continue: 182 / 39

Moving on to step 4:
182 divided by 39 is 4 with a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 34.0
Deduct 156 from 182 and we're left with 26.
Grab the next digit (4) from the dividend, add it to 26, then carry on: 264 / 39

Let's proceed to step 5:
If we divide 264 by 39, we get 6 and a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 346.0
Subtracting 234 from 264 leaves us with 30.
Fetch the next digit (2) from the dividend, attach it to 30 and continue: 302 / 39

Let's proceed to step 6:
The number 39 fits into 302 7 times, leaving a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 3467.0
If we subtract 273 from 302, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
39 can be fit into 290 7 times, resulting in a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 3467.7
If we subtract 273 from 290, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 8:
39 goes into 170 4 times with a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 3467.74
If we subtract 156 from 170, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
39 can be fit into 140 3 times, resulting in a remainder of 23.
The next digit of our result is 3. 
Result so far: 3467.743
The remainder is 23 after subtracting 117 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 10:
39 goes into 230 5 times with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 3467.7435
Subtract 195 from 230 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 11:
When dividing 350 by 39, we get 8 with a remainder of 38.
Use 8 as the next digit of our solution. 
Result so far: 3467.74358
If we subtract 312 from 350, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 12:
When dividing 380 by 39, we get 9 with a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 3467.743589
If we take 351 away from 380, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 13:
If we divide 290 by 39, we get 7 and a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 3467.7435897
If we subtract 273 from 290, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 14:
When dividing 170 by 39, we get 4 with a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 3467.74358974
If we take 156 away from 170, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 3467.74358974, and the remainder is 1.4e-08.