Alright, let's work through 9871 times 9145 step by step
9871 × 9145 = 9145 × (9871)
+ 9145 × 1 that equals 9145
+ 9145 × 70 giving us 640150
+ 9145 × 800 giving us 7316000
+ 9145 × 9000 that results in 82305000

= 90270295
