Mathematics

Have this mathematics theory crossed my mind during work today.

Let's play~

1 * 2 = 2
2 * 2 = 4
12 * 2 = 24

1 * 12 = 12
2 * 12 = 24
12 * 12 = 144

1 * 123 = 123
2 * 123 = 246
12 * 123 = 1476

69 * 27 = ??
1) 6 * 27 = ?
6 * 2 = 12
6 * 7 = 42
2) 9 * 27 = ?
9 * 2 = 18
9 * 7 = 63

p/s: I'm way too scientific in the sense. :P