Alright, let's work through 9901 times 9887 step by step
9901 × 9887 = 9887 × (9901)
+ 9887 × 1 which equals 9887
+ 9887 × 00 producing 0
+ 9887 × 900 which equals 8898300
+ 9887 × 9000 yielding 88983000

= 97891187
