We're dividing 342342 by 90 
Our goal is to divide 342342 by 90.

On to step 1:
If we divide 3 by 90, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 90

Step 2:
The number 90 fits into 34 0 times, leaving a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 34 to get 34.
Include the next digit (2) from the dividend after 34, then repeat: 342 / 90

Advancing to step 3:
90 goes into 342 3 times with a remainder of 72.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 270 from 342 leaves us with 72.
Grab the next digit (3) from the dividend, add it to 72, then carry on: 723 / 90

Step 4:
If we divide 723 by 90, we get 8 and a remainder of 3.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Deduct 720 from 723 and we're left with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 90

Let's proceed to step 5:
When dividing 34 by 90, we get 0 with a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 380.0
Subtract 0 from 34 to get 34.
Bring next digit (2) of the dividend behind the 34 and repeat the process: 342 / 90

Going ahead to step 6:
342 divided by 90 is 3 with a remainder of 72.
The next digit of our result is 3. 
Result so far: 3803.0
If we subtract 270 from 342, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 7:
When dividing 720 by 90, we get 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 3803.8
Subtracting 720 from 720 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.

Going ahead to step 8:
If we divide 0 by 90, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 3803.8
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
0 divided by 90 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 3803.8
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.

Our division results in 3803.8 with a remaining 0.0.