Let's divide 21042 by 60
Let's see how many times 60 fits into 21042.

Moving on to step 1:
60 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 60

Moving on to step 2:
60 can be fit into 21 0 times, resulting in a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 60

Moving on to step 3:
210 divided by 60 is 3 with a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 180 from 210 and we're left with 30.
Include the next digit (4) from the dividend after 30, then repeat: 304 / 60

Step 4:
The number 60 fits into 304 5 times, leaving a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 35.0
Subtracting 300 from 304 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 60

Let's proceed to step 5:
The number 60 fits into 42 0 times, leaving a remainder of 42.
The next digit of our result is 0. 
Result so far: 350.0
If we subtract 0 from 42, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 6:
If we divide 420 by 60, we get 7 and a remainder of 0.
The next digit of our result is 7. 
Result so far: 350.7
Deduct 420 from 420 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.

Moving on to step 7:
When dividing 0 by 60, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 350.7
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.

Going ahead to step 8:
When dividing 0 by 60, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 350.7
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.

The final result is 350.7 with a remainder of 0.0.