342021 divided by 8 
We're looking to find how many times 8 goes into 342021.

Moving on to step 1:
When dividing 3 by 8, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 8

Moving on to step 2:
8 can be fit into 34 4 times, resulting in a remainder of 2.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 32 from 34 leaves us with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 8

Step 3:
When dividing 22 by 8, we get 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
Deduct 16 from 22 and we're left with 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 8

Step 4:
60 divided by 8 is 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 427.0
Deduct 56 from 60 and we're left with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 8

Going ahead to step 5:
8 goes into 42 5 times with a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 4275.0
Subtract 40 from 42 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 8

Going ahead to step 6:
21 divided by 8 is 2 with a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 42752.0
Deduct 16 from 21 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
50 divided by 8 is 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 42752.6
If we take 48 away from 50, we end up 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.

Step 8:
If we divide 20 by 8, we get 2 and a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 42752.62
Subtract 16 from 20 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
The number 8 fits into 40 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 42752.625
Subtract 40 from 40 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
8 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 42752.625
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
When dividing 0 by 8, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 42752.625
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 42752.625, with a leftover of 0.0.