We're dividing 839423 by 42 
Our goal is to divide 839423 by 42.

On to step 1:
8 divided by 42 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 42

Moving on to step 2:
When dividing 83 by 42, we get 1 with a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 42 away from 83, we end up with 41.
Take the next digit (9) from the dividend and append it to 41, then repeat: 419 / 42

Going ahead to step 3:
When dividing 419 by 42, we get 9 with a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 19.0
If we take 378 away from 419, we end up with 41.
Fetch the next digit (4) from the dividend, attach it to 41 and continue: 414 / 42

Advancing to step 4:
42 can be fit into 414 9 times, resulting in a remainder of 36.
Write down 9 as next digit of the result. 
Result so far: 199.0
If we subtract 378 from 414, we get 36.
Take the next digit (2) from the dividend and append it to 36, then repeat: 362 / 42

Let's proceed to step 5:
When dividing 362 by 42, we get 8 with a remainder of 26.
Write down 8 as next digit of the result. 
Result so far: 1998.0
Deduct 336 from 362 and we're left with 26.
Take the next digit (3) from the dividend and append it to 26, then repeat: 263 / 42

Advancing to step 6:
When dividing 263 by 42, we get 6 with a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 19986.0
If we take 252 away from 263, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
When dividing 110 by 42, we get 2 with a remainder of 26.
Record the quotient 2 as the next digit in the result. 
Result so far: 19986.2
The remainder is 26 after subtracting 84 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 8:
260 divided by 42 is 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 19986.26
Deduct 252 from 260 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 9:
The number 42 fits into 80 1 times, leaving a remainder of 38.
The next digit of our result is 1. 
Result so far: 19986.261
If we take 42 away from 80, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
42 goes into 380 9 times with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 19986.2619
Subtracting 378 from 380 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 11:
42 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 19986.2619
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 12:
The number 42 fits into 200 4 times, leaving a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 19986.261904
The remainder is 32 after subtracting 168 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 13:
320 divided by 42 is 7 with a remainder of 26.
Write down 7 as next digit of the result. 
Result so far: 19986.2619047
Deduct 294 from 320 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 14:
42 can be fit into 260 6 times, resulting in a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 19986.26190476
Deduct 252 from 260 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 19986.26190476 with a balance of 8e-09.