15857 ÷ 82 
We want to divide 15857 by 82.

Step 1:
82 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 82

Step 2:
82 can be fit into 15 0 times, resulting in a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 82

On to step 3:
82 goes into 158 1 times with a remainder of 76.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 82 from 158 and we're left with 76.
Bring next digit (5) of the dividend behind the 76 and repeat the process: 765 / 82

Going ahead to step 4:
If we divide 765 by 82, we get 9 and a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtract 738 from 765 to get 27.
Include the next digit (7) from the dividend after 27, then repeat: 277 / 82

Moving on to step 5:
When dividing 277 by 82, we get 3 with a remainder of 31.
Use 3 as the next digit of our solution. 
Result so far: 193.0
Subtract 246 from 277 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 6:
82 can be fit into 310 3 times, resulting in a remainder of 64.
Use 3 as the next digit of our solution. 
Result so far: 193.3
Subtracting 246 from 310 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 7:
When dividing 640 by 82, we get 7 with a remainder of 66.
Write down 7 as next digit of the result. 
Result so far: 193.37
Subtract 574 from 640 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 8:
82 can be fit into 660 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 193.378
The remainder is 4 after subtracting 656 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
When dividing 40 by 82, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 193.378
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
82 goes into 400 4 times with a remainder of 72.
Put 4 as the next digit of the answer. 
Result so far: 193.37804
Subtract 328 from 400 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 11:
When dividing 720 by 82, we get 8 with a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 193.378048
If we subtract 656 from 720, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 12:
82 goes into 640 7 times with a remainder of 66.
Use 7 as the next digit of our solution. 
Result so far: 193.3780487
The remainder is 66 after subtracting 574 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 13:
82 goes into 660 8 times with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 193.37804878
The remainder is 4 after subtracting 656 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 193.37804878 and a remainder of 4e-09.