YOU SAID:
111,111,111 x 111,111,111 = 123,456,789,876,543,210
INTO JAPANESE
111,111,111 x 111,111,111 = 123,456,789,876,543,210
BACK INTO ENGLISH
111,-669149696, 111,111 = 123, 456789, 876, 543, 210
INTO JAPANESE
111,-669149696, 111,111 = 123、456789、876, 543, 210
BACK INTO ENGLISH
111,-669149696, 1804507136, 543, 210
INTO JAPANESE
111,-669149696, 1804507136, 543, 210
BACK INTO ENGLISH
111,-669149696, 1804507136, 543, 210
Come on, you can do better than that.