def splitBinNum(binNum):
    """Split an alternate block number into latitude and longitude parts.

    Args:
        binNum (int): Alternative block number

    Returns:
        :tuple Tuple:
        
        1. (int) Latitude portion of the alternate block number.
           Example: ``614123`` => ``614`` 
        2. (int) Longitude portion of the alternate block number.
           Example: ``614123`` => ``123`` 
    """
    latBin = int(binNum / 1000)
    longBin = binNum - (latBin * 1000)

    return (latBin, longBin)