2. I also pointed out that the KJV translation does not even indicate a 49 year period of building. It says from the "word" until " cut off Messiah" is 69 (62+7) weeks. Therefore,

3. There is no reason, according to Christian POV, to divide 69 into 62 and 7.

From the Christian POV, yes there is a reason, because Daniel had PRAYED about two issues - the rebuilding of Jerusalem.
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i do not think so. Whether or not Daniel prayed for Jerusalem has no bearing on my point. What I said is that the KJV translation does not mention anything about a 7 week building process:

9:25 Know therefore and understand, [that] from the going forth of the commandment to restore and to build Jerusalem unto the Messiah the Prince [shall be] seven weeks, and threescore and two weeks: the street shall be built again, and the wall, even in troublous times. 9:26 And after threescore and two weeks shall Messiah be cut off (KJV).

THAT is a reason to view the division of the 69 weeks as arbitrary for followers of the kjv translation. KJV simply says the time from the "word" to build until messiah "cut off" is 62 and 7 weeks. It never says the building is 7 weeks.