John climbs up 9 flights of stairs.  Each flight is 10 feet.  If each step is 18 inches, how many steps does he climb up?
He has to climb 9*10=
<gadget id="calculator">9*10</gadget>
<output>90</output>
90 feet.
That means he needs to climb 90*12=
<gadget id="calculator">90*12</gadget>
<output>1_080</output>
1080 inches.
That means he needs to climb 1080/18=
<gadget id="calculator">1080/18</gadget>
<output>60</output>
60 stairs.

<result>60</result>