838321 ÷ 42 
We want to figure out the number of times 838321 can be divided by 42.

Step 1:
42 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 42

Moving on to step 2:
The number 42 fits into 83 1 times, leaving a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 42 from 83 and we're left with 41.
Bring next digit (8) of the dividend behind the 41 and repeat the process: 418 / 42

Let's proceed to step 3:
The number 42 fits into 418 9 times, leaving a remainder of 40.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
The remainder is 40 after subtracting 378 from 418.
Include the next digit (3) from the dividend after 40, then repeat: 403 / 42

Step 4:
The number 42 fits into 403 9 times, leaving a remainder of 25.
Put 9 as the next digit of the answer. 
Result so far: 199.0
If we subtract 378 from 403, we get 25.
Grab the next digit (2) from the dividend, add it to 25, then carry on: 252 / 42

Step 5:
When dividing 252 by 42, we get 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 1996.0
If we subtract 252 from 252, we get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 42

Going ahead to step 6:
The number 42 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 19960.0
Deduct 0 from 1 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
If we divide 10 by 42, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 19960.0
If we subtract 0 from 10, 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.

Advancing to step 8:
If we divide 100 by 42, we get 2 and a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 19960.02
Subtracting 84 from 100 leaves us 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.

Advancing to step 9:
The number 42 fits into 160 3 times, leaving a remainder of 34.
Record the quotient 3 as the next digit in the result. 
Result so far: 19960.023
Deduct 126 from 160 and we're left 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.

Let's proceed to step 10:
42 can be fit into 340 8 times, resulting in a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 19960.0238
Deduct 336 from 340 and we're left 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.

Step 11:
42 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 19960.0238
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 12:
When dividing 400 by 42, we get 9 with a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 19960.023809
The remainder is 22 after subtracting 378 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 13:
When dividing 220 by 42, we get 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 19960.0238095
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 14:
100 divided by 42 is 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 19960.02380952
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 19960.02380952 with a remaining 1.6e-08.