The sixth grade students went to the garbage power station to visit and study. Each car can seat 58 people. It is known that there are 218 boys and 188 girls in the sixth grade. How many such buses are needed? (Solve with a comprehensive formula)
六年级同学到垃圾发电站去参观学习，每辆车能坐58人．已知六年级有男生218人，女生188人，需要几辆这样的客车？(用综合算式解答)
<gadget id="calculator">218 + 188</gadget>
<output>406</output>

<gadget id="calculator">406 / 58</gadget>
<output>7</output>

<result>7</result>