We look at the division of 84871210 by 239 
We want to divide 84871210 by 239.

Going ahead to step 1:
239 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 239

On to step 2:
239 goes into 84 0 times with a remainder of 84.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 84 after subtracting 0 from 84.
Fetch the next digit (8) from the dividend, attach it to 84 and continue: 848 / 239

Advancing to step 3:
239 goes into 848 3 times with a remainder of 131.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 131 after subtracting 717 from 848.
Fetch the next digit (7) from the dividend, attach it to 131 and continue: 1317 / 239

Step 4:
If we divide 1317 by 239, we get 5 and a remainder of 122.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
If we take 1195 away from 1317, we end up with 122.
Grab the next digit (1) from the dividend, add it to 122, then carry on: 1221 / 239

Moving on to step 5:
239 goes into 1221 5 times with a remainder of 26.
Record the quotient 5 as the next digit in the result. 
Result so far: 355.0
The remainder is 26 after subtracting 1195 from 1221.
Take the next digit (2) from the dividend and append it to 26, then repeat: 262 / 239

On to step 6:
239 can be fit into 262 1 times, resulting in a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 3551.0
Subtract 239 from 262 to get 23.
Bring next digit (1) of the dividend behind the 23 and repeat the process: 231 / 239

Going ahead to step 7:
231 divided by 239 is 0 with a remainder of 231.
Write down 0 as next digit of the result. 
Result so far: 35510.0
The remainder is 231 after subtracting 0 from 231.
Include the next digit (0) from the dividend after 231, then repeat: 2310 / 239

Advancing to step 8:
2310 divided by 239 is 9 with a remainder of 159.
Record the quotient 9 as the next digit in the result. 
Result so far: 355109.0
Subtracting 2151 from 2310 leaves us with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

On to step 9:
1590 divided by 239 is 6 with a remainder of 156.
Put 6 as the next digit of the answer. 
Result so far: 355109.6
Subtract 1434 from 1590 to get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

On to step 10:
239 goes into 1560 6 times with a remainder of 126.
Write down 6 as next digit of the result. 
Result so far: 355109.66
Subtracting 1434 from 1560 leaves us with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

After the division, we end up with 355109.66 and a remainder of 0.126.