Multiplying decimals is not so hard. If you can multiply two numbers you can multiply decimals. To multiply 0.38 by 0.061, start by multiplying 38 by 61.
x
30
8
60
1800
480
1
30
8
Now add 1800+480+30+8=2318.
There are five decimal places in the question, so there will be five decimal places in the answer. The answer is 0.02318.