``python
def get_even_numbers(numbers):
"""
Takes a list of integers and returns a new list containing only the even numbers,
preserving their original order.

Args:
numbers: A list of integers.

Returns:
A new list containing only the even numbers from the input list.
"""
even_numbers = []
for number in numbers:
if number % 2 == 0:
even_numbers.append(number)
return even_numbers

Example usage:

my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

evens = get_even_numbers(my_list)

print(evens) # Output: [2, 4, 6, 8, 10]

another_list = [11, 22, 33, 44, 55]

evens_again = get_even_numbers(another_list)

print(evens_again) # Output: [22, 44]

empty_list = []

print(get_even_numbers(empty_list)) # Output: []

no_evens = [1, 3, 5, 7]

print(get_even_numbers(no_evens)) # Output: []

``