Answers

2015-12-06T19:28:25+08:00
1.23 ..............,,..............
0
2015-12-06T19:28:45+08:00
111,111,111 x 111,111,111 = 1234567897654321... Hahaha, the answer is amazing isn't it? :)
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I'm sure it's just typo error; you miss 8 after 9 :-) 
ops, soz... thanks for reminding me ^_^
soz, the answer is 12345678987654321, xDD