What is the sum of the product of 15 times 30 plus the quotient of 312 divided by 13?
15乘30的积加上312除以13的商，和是多少？
<gadget id="calculator">15 * 30</gadget>
<output>450</output>

<gadget id="calculator">312 / 13</gadget>
<output>24</output>

<gadget id="calculator">450 + 24</gadget>
<output>474</output>

<result>474</result>