Master Li needs to process 300 parts, and has already processed 60 parts. If 48 pieces are processed every day, how many days will it take to finish processing?
李师傅要加工300个零件，已经加工了60个．如果每天加工48个，还要几天才能加工完？
<gadget id="calculator">300 - 60</gadget>
<output>240</output>

<gadget id="calculator">240 / 48</gadget>
<output>5</output>

<result>5</result>