We're dividing 428142 by 33 
We want to figure out the number of times 428142 can be divided by 33.

On to step 1:
The number 33 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 33

Going ahead to step 2:
If we divide 42 by 33, we get 1 and a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 33 from 42 and we're left with 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 33

Going ahead to step 3:
The number 33 fits into 98 2 times, leaving a remainder of 32.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 66 from 98 leaves us with 32.
Take the next digit (1) from the dividend and append it to 32, then repeat: 321 / 33

Advancing to step 4:
33 goes into 321 9 times with a remainder of 24.
Put 9 as the next digit of the answer. 
Result so far: 129.0
Subtract 297 from 321 to get 24.
Bring next digit (4) of the dividend behind the 24 and repeat the process: 244 / 33

Moving on to step 5:
When dividing 244 by 33, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 1297.0
If we take 231 away from 244, we end up with 13.
Bring next digit (2) of the dividend behind the 13 and repeat the process: 132 / 33

Step 6:
When dividing 132 by 33, we get 4 with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 12974.0
If we subtract 132 from 132, 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.

Moving on to step 7:
33 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12974.0
If we subtract 0 from 0, 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:
33 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12974.0
If we subtract 0 from 0, 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.

The final result is 12974.0 with a remainder of 0.0.