Alright, let's work through 9142 times 8622 step by step
9142 × 8622 = 8622 × (9142)
+ 8622 × 2 that equals 17244
+ 8622 × 40 that is equal 344880
+ 8622 × 100 which equals 862200
+ 8622 × 9000 producing 77598000

= 78822324
