In the school celebration cultural gymnastics performance, a total of 80 students from the third grade participated, and each group was divided into four groups. How many groups were divided into?
在校庆文艺体操表演中，三年级一共有80名同学参加，每4人分成一组，一共分成了多少组？
<gadget id="calculator">80 / 4</gadget>
<output>20</output>

<result>20</result>