John takes a pill every 6 hours.  How many pills does he take a week?
He takes 24/6=
<gadget id="calculator">24/6</gadget>
<output>4</output>
4 pills a day.
So he takes 4*7=
<gadget id="calculator">4*7</gadget>
<output>28</output>
28 pills a week.

<result>28</result>