We look at the division of 81842687 by 431 
Let's see how many times 431 fits into 81842687.

Moving on to step 1:
If we divide 8 by 431, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 431

Going ahead to step 2:
If we divide 81 by 431, we get 0 and a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Take the next digit (8) from the dividend and append it to 81, then repeat: 818 / 431

Advancing to step 3:
818 divided by 431 is 1 with a remainder of 387.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 431 from 818 leaves us with 387.
Bring next digit (4) of the dividend behind the 387 and repeat the process: 3874 / 431

Going ahead to step 4:
431 goes into 3874 8 times with a remainder of 426.
The next digit of our result is 8. 
Result so far: 18.0
If we take 3448 away from 3874, we end up with 426.
Grab the next digit (2) from the dividend, add it to 426, then carry on: 4262 / 431

Going ahead to step 5:
4262 divided by 431 is 9 with a remainder of 383.
The number 9 becomes the next digit in our result. 
Result so far: 189.0
If we take 3879 away from 4262, we end up with 383.
Include the next digit (6) from the dividend after 383, then repeat: 3836 / 431

Going ahead to step 6:
3836 divided by 431 is 8 with a remainder of 388.
Record the quotient 8 as the next digit in the result. 
Result so far: 1898.0
Deduct 3448 from 3836 and we're left with 388.
Take the next digit (8) from the dividend and append it to 388, then repeat: 3888 / 431

Moving on to step 7:
The number 431 fits into 3888 9 times, leaving a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 18989.0
Deduct 3879 from 3888 and we're left with 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 431

On to step 8:
431 goes into 97 0 times with a remainder of 97.
Write down 0 as next digit of the result. 
Result so far: 189890.0
The remainder is 97 after subtracting 0 from 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Advancing to step 9:
When dividing 970 by 431, we get 2 with a remainder of 108.
Record the quotient 2 as the next digit in the result. 
Result so far: 189890.2
Subtracting 862 from 970 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

On to step 10:
The number 431 fits into 1080 2 times, leaving a remainder of 218.
Record the quotient 2 as the next digit in the result. 
Result so far: 189890.22
Subtracting 862 from 1080 leaves us with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

In conclusion, the division gives 189890.22 with a balance of 0.218.