Alright, let's work through 1107 times 8907 step by step
1107 × 8907 = 8907 × (1107)
+ 8907 × 7 what gives us 62349
+ 8907 × 00 producing 0
+ 8907 × 100 yielding 890700
+ 8907 × 1000 what gives us 8907000

= 9860049
