input: Write a function to convert minutes to hours and remaining minutes.
  assert convert_minutes(150) == (2, 30)
  assert convert_minutes(60) == (1, 0)
  assert convert_minutes(45) == (0, 45)
  assert convert_minutes(0) == (0, 0)
output: def convert_minutes(minutes):
      hours = minutes // 60
      remaining_minutes = minutes % 60
      return hours, remaining_minutes