Alright! From the start, each number is being divided by 10. Or, in simple terms, the decimal is moving one to the left each time:
547 → 54.7 → 5.47 → 0.547
Now, you have to keep moving the decimal one to the left. To do that, you have to fill in a zero each time. So the next two terms would be as follows:
.547 → .0547 → .00547