A factory plans to produce 26,500 parts. In the first 5 days, an average of 2,180 parts are produced every day. Due to technological innovation, 420 more parts are produced every day than before. How many days will it take to complete this batch of parts?
某工厂计划生产26500个零件，前5天平均每天生产2180个零件，由于技术革新每天比原来多生产420个零件，完成这批零件一共需要多少天．
<gadget id="calculator">2_180 * 5</gadget>
<output>10_900</output>

<gadget id="calculator">26_500 - 10_900</gadget>
<output>15_600</output>

<gadget id="calculator">2_180 + 420</gadget>
<output>2_600</output>

<gadget id="calculator">15_600 / 2_600</gadget>
<output>6</output>

<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<result>11</result>