my_list = [5613, 1223, 966143, 890, 65, 10221]

print("The list is :")
print(my_list)

my_result = []
for sub in my_list:

   mid_index = len(str(sub)) // 2
   element_1 = str(sub)[:mid_index]
   element_2 = str(sub)[mid_index:]

   my_result.append((int(element_1), int(element_2)))

print("The resultant list is :")
print(my_result)

The list is :
[5613, 1223, 966143, 890, 65, 10221]
The resultant list is :
[(56, 13), (12, 23), (966, 143), (8, 90), (6, 5), (10, 221)]