Master Wang has to process 455 parts, and 65 parts were processed in the first 5 days. How many days will it take for Master Wang to complete this processing task at this speed?
王师傅要加工455个零件，前5天加工了65个，照这样的速度王师傅完成这项加工任务还要用多少天？
<gadget id="calculator">455 - 65</gadget>
<output>390</output>

<gadget id="calculator">65 / 5</gadget>
<output>13</output>

<gadget id="calculator">390 / 13</gadget>
<output>30</output>

<result>30</result>