divide a list into three separate list

def divide_list(list1):
    list2 = []
    list3 = []
    list4 = []
    for i in range(len(list1)):
        if i % 3 == 0:
            list2.append(list1[i])
        elif i % 3 == 1:
            list3.append(list1[i])
        else:
            list4.append(list1[i])
    return list2, list3, list4

divide_list([1,2,3,4,5,6,7,8,9])