If a number is divided by 6, the quotient is 80 with a remainder of 5. What is this number?
一个数除以6，商80余5，这个数是多少．
<gadget id="calculator">6 * 80</gadget>
<output>480</output>

<gadget id="calculator">480 + 5</gadget>
<output>485</output>

<result>485</result>