Alright, let's work through 9864 times 442 step by step
9864 × 442 = 442 × (9864)
+ 442 × 4 that equals 1768
+ 442 × 60 yielding 26520
+ 442 × 800 what gives us 353600
+ 442 × 9000 which equals 3978000

= 4359888
