857841 ÷ 42 
Let's see how many times 42 fits into 857841.

Let's proceed to step 1:
8 divided by 42 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 42

Let's proceed to step 2:
42 can be fit into 85 2 times, resulting in a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 84 from 85 to get 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 42

Going ahead to step 3:
42 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we take 0 away from 17, we end up with 17.
Fetch the next digit (8) from the dividend, attach it to 17 and continue: 178 / 42

Step 4:
178 divided by 42 is 4 with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 204.0
If we subtract 168 from 178, we get 10.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 42

Step 5:
42 goes into 104 2 times with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 2042.0
Deduct 84 from 104 and we're left with 20.
Bring next digit (1) of the dividend behind the 20 and repeat the process: 201 / 42

Let's proceed to step 6:
201 divided by 42 is 4 with a remainder of 33.
Put 4 as the next digit of the answer. 
Result so far: 20424.0
Subtracting 168 from 201 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
330 divided by 42 is 7 with a remainder of 36.
Write down 7 as next digit of the result. 
Result so far: 20424.7
Subtracting 294 from 330 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 8:
42 goes into 360 8 times with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 20424.78
Subtract 336 from 360 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 9:
If we divide 240 by 42, we get 5 and a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 20424.785
Subtracting 210 from 240 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 10:
The number 42 fits into 300 7 times, leaving a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 20424.7857
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 11:
The number 42 fits into 60 1 times, leaving a remainder of 18.
The next digit of our result is 1. 
Result so far: 20424.78571
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 12:
The number 42 fits into 180 4 times, leaving a remainder of 12.
The next digit of our result is 4. 
Result so far: 20424.785714
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 13:
120 divided by 42 is 2 with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 20424.7857142
The remainder is 36 after subtracting 84 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 14:
42 can be fit into 360 8 times, resulting in a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 20424.78571428
Subtracting 336 from 360 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The quotient of the division is 20424.78571428, and the remainder is 2.4e-08.