The furniture factory has to process 800 sets of sofas in total. It has been processing for 5 days, with an average of 74 sets per day. The rest process 86 sets per day on average, how many more days will it take to complete the task?
家具厂一共要加工800套沙发，已经加工了5天，平均每天加工74套．剩下的平均每天加工86套，还需要几天完成任务？
<gadget id="calculator">74 * 5</gadget>
<output>370</output>

<gadget id="calculator">800 - 370</gadget>
<output>430</output>

<gadget id="calculator">430 / 86</gadget>
<output>5</output>

<result>5</result>