287871 divided by 39 
We want to figure out the number of times 287871 can be divided by 39.

Step 1:
2 divided by 39 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 39

Step 2:
When dividing 28 by 39, we get 0 with a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 28, we end up with 28.
Bring next digit (7) of the dividend behind the 28 and repeat the process: 287 / 39

Let's proceed to step 3:
39 can be fit into 287 7 times, resulting in a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 273 away from 287, we end up with 14.
Append the next digit (8) from the dividend to 14 and continue with: 148 / 39

Step 4:
If we divide 148 by 39, we get 3 and a remainder of 31.
The next digit of our result is 3. 
Result so far: 73.0
If we subtract 117 from 148, we get 31.
Bring next digit (7) of the dividend behind the 31 and repeat the process: 317 / 39

Advancing to step 5:
39 can be fit into 317 8 times, resulting in a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 738.0
The remainder is 5 after subtracting 312 from 317.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 39

On to step 6:
39 goes into 51 1 times with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 7381.0
The remainder is 12 after subtracting 39 from 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
39 can be fit into 120 3 times, resulting in a remainder of 3.
The next digit of our result is 3. 
Result so far: 7381.3
The remainder is 3 after subtracting 117 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
39 can be fit into 30 0 times, resulting in a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 7381.3
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
300 divided by 39 is 7 with a remainder of 27.
The number 7 becomes the next digit in our result. 
Result so far: 7381.307
Subtract 273 from 300 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 10:
If we divide 270 by 39, we get 6 and a remainder of 36.
Record the quotient 6 as the next digit in the result. 
Result so far: 7381.3076
If we take 234 away from 270, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 11:
39 can be fit into 360 9 times, resulting in a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 7381.30769
Subtracting 351 from 360 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 12:
The number 39 fits into 90 2 times, leaving a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 7381.307692
If we subtract 78 from 90, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 13:
120 divided by 39 is 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 7381.3076923
The remainder is 3 after subtracting 117 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 14:
If we divide 30 by 39, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 7381.3076923
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 7381.3076923 with a remainder of 3e-08.