Alright, let's work through 9884 times 7915 step by step
9884 × 7915 = 7915 × (9884)
+ 7915 × 4 producing 31660
+ 7915 × 80 giving us 633200
+ 7915 × 800 that results in 6332000
+ 7915 × 9000 which equals 71235000

= 78231860
