The school is going to distribute exercise books to 24 classes with 306 copies per class. How many exercise books should the school buy?
学校准备发练习本，发给24个班，每班306本，学校应买多少本练习本？
<gadget id="calculator">306 * 24</gadget>
<output>7_344</output>

<result>7_344</result>