We're dividing 3321 by 45 
We want to divide 3321 by 45.

Moving on to step 1:
The number 45 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 45

Advancing to step 2:
45 goes into 33 0 times with a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 33 after subtracting 0 from 33.
Fetch the next digit (2) from the dividend, attach it to 33 and continue: 332 / 45

Going ahead to step 3:
If we divide 332 by 45, we get 7 and a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 17 after subtracting 315 from 332.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 45

Moving on to step 4:
45 can be fit into 171 3 times, resulting in a remainder of 36.
The number 3 becomes the next digit in our result. 
Result so far: 73.0
Deduct 135 from 171 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 5:
When dividing 360 by 45, we get 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 73.8
If we subtract 360 from 360, 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.

Going ahead to step 6:
45 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 73.8
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.

Step 7:
The number 45 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 73.8
If we take 0 away from 0, we end up 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 result is 73.8 with a remainder of 0.0.