We look at the division of 829843 by 42 
We want to divide 829843 by 42.

Step 1:
8 divided by 42 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 42

Moving on to step 2:
82 divided by 42 is 1 with a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 42 from 82 and we're left with 40.
Take the next digit (9) from the dividend and append it to 40, then repeat: 409 / 42

Moving on to step 3:
The number 42 fits into 409 9 times, leaving a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtract 378 from 409 to get 31.
Include the next digit (8) from the dividend after 31, then repeat: 318 / 42

On to step 4:
318 divided by 42 is 7 with a remainder of 24.
Use 7 as the next digit of our solution. 
Result so far: 197.0
Deduct 294 from 318 and we're left with 24.
Include the next digit (4) from the dividend after 24, then repeat: 244 / 42

Let's proceed to step 5:
42 goes into 244 5 times with a remainder of 34.
Write down 5 as next digit of the result. 
Result so far: 1975.0
Subtract 210 from 244 to get 34.
Take the next digit (3) from the dividend and append it to 34, then repeat: 343 / 42

Going ahead to step 6:
If we divide 343 by 42, we get 8 and a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 19758.0
Subtracting 336 from 343 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
If we divide 70 by 42, we get 1 and a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 19758.1
Deduct 42 from 70 and we're left 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.

On to step 8:
42 goes into 280 6 times with a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 19758.16
If we take 252 away from 280, 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 9:
If we divide 280 by 42, we get 6 and a remainder of 28.
The next digit of our result is 6. 
Result so far: 19758.166
Subtracting 252 from 280 leaves us 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.

The final result is 19758.166 with a remainder of 0.0028.