The school displayed a total of 378 insect specimens. Each display board is arranged in 6 rows, and 9 pieces are placed in each row. How many panels can be filled?
学校一共展示了378件昆虫标本．每块展板排6行，每行放9件．可以放满几块展板？
<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<gadget id="calculator">378 / 54</gadget>
<output>7</output>

<result>7</result>