There are 3 bookshelves in the school library, and each shelf has 4 floors with a total of 792 books. How many books are placed on each shelf on average?
学校图书馆有3个书架，每个书架有4层一共放了792本书，平均每个书架每层放多少本书？
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">792 / 12</gadget>
<output>66</output>

<result>66</result>