348369 ÷ 42 
We want to figure out the number of times 348369 can be divided by 42.

Step 1:
42 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 42

Advancing to step 2:
42 can be fit into 34 0 times, resulting in a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Append the next digit (8) from the dividend to 34 and continue with: 348 / 42

Step 3:
If we divide 348 by 42, we get 8 and a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 336 from 348, we get 12.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 42

Going ahead to step 4:
42 can be fit into 123 2 times, resulting in a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 82.0
If we take 84 away from 123, we end up with 39.
Bring next digit (6) of the dividend behind the 39 and repeat the process: 396 / 42

Advancing to step 5:
42 goes into 396 9 times with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 829.0
If we take 378 away from 396, we end up with 18.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 42

On to step 6:
42 goes into 189 4 times with a remainder of 21.
Put 4 as the next digit of the answer. 
Result so far: 8294.0
If we subtract 168 from 189, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 7:
42 can be fit into 210 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 8294.5
If we subtract 210 from 210, we 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.

On to step 8:
42 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 8294.5
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.

On to step 9:
When dividing 0 by 42, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8294.5
Deduct 0 from 0 and we're left 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.

After the division, we end up with 8294.5 and a remainder of 0.0.