Answer
Five Thousand Point Zero Two
Work Step by Step
To write the given decimal number in words, we need to start with the whole numbers, ie 5000 (Five Thousand)
Then comes the decimal point. While reading or writing we say or write the '.' as 'point' instead of 'decimal point'.
After the decimal point, the digit's names are written and spoken separately (ie, Zero Two)
0 $=$ Zero
2 $=$ Two
So the answer is Five Thousand point Zero Two.