The garment factory plans to produce 863 sets of garments, and it has been done for 6.5 days, with an average of 76 sets per day. The rest will make 82 sets per day on average, how many days will it take to finish?
服装厂计划做863套服装，已经做了6.5天，平均每天做76套．剩下的平均每天做82套，还要几天做完？
<gadget id="calculator">76 * 6.5</gadget>
<output>494</output>

<gadget id="calculator">863 - 494</gadget>
<output>369</output>

<gadget id="calculator">369 / 82</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>