We look at the division of 843726 by 42 
Let's see how many times 42 fits into 843726.

Advancing 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
The remainder is 8 after subtracting 0 from 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 42

Moving on to step 2:
The number 42 fits into 84 2 times, leaving a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 84 from 84 leaves us with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 42

Advancing to step 3:
The number 42 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 42

Going ahead to step 4:
37 divided by 42 is 0 with a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 200.0
Subtract 0 from 37 to get 37.
Take the next digit (2) from the dividend and append it to 37, then repeat: 372 / 42

Let's proceed to step 5:
If we divide 372 by 42, we get 8 and a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 2008.0
Subtracting 336 from 372 leaves us with 36.
Append the next digit (6) from the dividend to 36 and continue with: 366 / 42

Going ahead to step 6:
If we divide 366 by 42, we get 8 and a remainder of 30.
Write down 8 as next digit of the result. 
Result so far: 20088.0
If we take 336 away from 366, we end up 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.

On to step 7:
When dividing 300 by 42, we get 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 20088.7
If we take 294 away from 300, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
If we divide 60 by 42, we get 1 and a remainder of 18.
The next digit of our result is 1. 
Result so far: 20088.71
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.

Going ahead to step 9:
180 divided by 42 is 4 with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 20088.714
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 10:
120 divided by 42 is 2 with a remainder of 36.
The next digit of our result is 2. 
Result so far: 20088.7142
If we take 84 away from 120, we end up 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.

Advancing to step 11:
If we divide 360 by 42, we get 8 and a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 20088.71428
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.

Advancing to step 12:
The number 42 fits into 240 5 times, leaving a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 20088.714285
Deduct 210 from 240 and we're left 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.

Let's proceed to step 13:
42 can be fit into 300 7 times, resulting in a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 20088.7142857
The remainder is 6 after subtracting 294 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 14:
42 can be fit into 60 1 times, resulting in a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 20088.71428571
Deduct 42 from 60 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 20088.71428571, with a leftover of 1.8e-08.