We're dividing 102850 by 39 
We want to divide 102850 by 39.

Step 1:
When dividing 1 by 39, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 39

Advancing to step 2:
39 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 39

Going ahead to step 3:
When dividing 102 by 39, we get 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 78 from 102 leaves us with 24.
Include the next digit (8) from the dividend after 24, then repeat: 248 / 39

Let's proceed to step 4:
If we divide 248 by 39, we get 6 and a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 26.0
If we subtract 234 from 248, we get 14.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 39

Advancing to step 5:
The number 39 fits into 145 3 times, leaving a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 263.0
Deduct 117 from 145 and we're left with 28.
Bring next digit (0) of the dividend behind the 28 and repeat the process: 280 / 39

Advancing to step 6:
When dividing 280 by 39, we get 7 with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 2637.0
If we subtract 273 from 280, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
When dividing 70 by 39, we get 1 with a remainder of 31.
The number 1 becomes the next digit in our result. 
Result so far: 2637.1
Subtracting 39 from 70 leaves us with 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 8:
If we divide 310 by 39, we get 7 and a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 2637.17
Deduct 273 from 310 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 9:
If we divide 370 by 39, we get 9 and a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 2637.179
If we subtract 351 from 370, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 10:
When dividing 190 by 39, we get 4 with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 2637.1794
Subtracting 156 from 190 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 11:
The number 39 fits into 340 8 times, leaving a remainder of 28.
Record the quotient 8 as the next digit in the result. 
Result so far: 2637.17948
If we take 312 away from 340, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 12:
39 goes into 280 7 times with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 2637.179487
If we subtract 273 from 280, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 13:
If we divide 70 by 39, we get 1 and a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 2637.1794871
Subtract 39 from 70 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 14:
39 goes into 310 7 times with a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 2637.17948717
Subtracting 273 from 310 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

The final result is 2637.17948717 with a remainder of 3.7e-08.