There is 864 kilograms of rice in the cafeteria of a certain elementary school. The original plan was to eat 8 days, but the actual consumption was 36 kilograms less than the original plan. How many days did you actually eat?
某小学食堂有864千克大米，原计划吃8天，实际比原计划每天少吃36千克．实际多少天吃完？
<gadget id="calculator">864 / 8</gadget>
<output>108</output>

<gadget id="calculator">108 - 36</gadget>
<output>72</output>

<gadget id="calculator">864 / 72</gadget>
<output>12</output>

<result>12</result>