Alright, let's work through 9421 times 9418 step by step
9421 × 9418 = 9418 × (9421)
+ 9418 × 1 giving us 9418
+ 9418 × 20 what gives us 188360
+ 9418 × 400 yielding 3767200
+ 9418 × 9000 giving us 84762000

= 88726978
