Alright, let's work through 9847 times 4027 step by step
9847 × 4027 = 4027 × (9847)
+ 4027 × 7 yielding 28189
+ 4027 × 40 resulting in 161080
+ 4027 × 800 that results in 3221600
+ 4027 × 9000 which equals 36243000

= 39653869
