说明：  这是一个适合51单片机进行多字节除法运算的子程序(32位除24位).程序注释明晰,数据出入口有说明,可直接调用.
(This is a suitable single-chip microcomputer 51 to carry out multi-byte subroutine computing division (32 in addition to 24). Procedures Notes clarity, data import and export has made it clear that direct calls.)