We look at the division of 809371 by 42 
Let's see how many times 42 fits into 809371.

Let's proceed to step 1:
The number 42 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 42

Going ahead to step 2:
42 goes into 80 1 times with a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 42 away from 80, we end up with 38.
Take the next digit (9) from the dividend and append it to 38, then repeat: 389 / 42

Step 3:
The number 42 fits into 389 9 times, leaving a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 19.0
Deduct 378 from 389 and we're left with 11.
Append the next digit (3) from the dividend to 11 and continue with: 113 / 42

Advancing to step 4:
If we divide 113 by 42, we get 2 and a remainder of 29.
Use 2 as the next digit of our solution. 
Result so far: 192.0
If we subtract 84 from 113, we get 29.
Grab the next digit (7) from the dividend, add it to 29, then carry on: 297 / 42

Moving on to step 5:
If we divide 297 by 42, we get 7 and a remainder of 3.
The next digit of our result is 7. 
Result so far: 1927.0
Subtract 294 from 297 to get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 42

Advancing to step 6:
42 goes into 31 0 times with a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 19270.0
If we take 0 away from 31, we end up 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.

Moving on to step 7:
42 can be fit into 310 7 times, resulting in a remainder of 16.
The number 7 becomes the next digit in our result. 
Result so far: 19270.7
If we take 294 away from 310, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
160 divided by 42 is 3 with a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 19270.73
Subtracting 126 from 160 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.

On to step 9:
42 goes into 340 8 times with a remainder of 4.
The next digit of our result is 8. 
Result so far: 19270.738
Subtracting 336 from 340 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 10:
42 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 19270.738
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 11:
400 divided by 42 is 9 with a remainder of 22.
The next digit of our result is 9. 
Result so far: 19270.73809
Subtract 378 from 400 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 12:
If we divide 220 by 42, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 19270.738095
If we subtract 210 from 220, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
100 divided by 42 is 2 with a remainder of 16.
The next digit of our result is 2. 
Result so far: 19270.7380952
Deduct 84 from 100 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 14:
The number 42 fits into 160 3 times, leaving a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 19270.73809523
The remainder is 34 after subtracting 126 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Our division results in 19270.73809523 with a remaining 3.4e-08.