Alright, let's work through 42287147 times 89146041 step by step
42287147 × 89146041 = 89146041 × (42287147)
+ 89146041 × 7 producing 624022287
+ 89146041 × 40 yielding 3565841640
+ 89146041 × 100 producing 8914604100
+ 89146041 × 7000 that results in 624022287000
+ 89146041 × 80000 which equals 7131683280000
+ 89146041 × 200000 giving us 17829208200000
+ 89146041 × 2000000 that results in 178292082000000
+ 89146041 × 40000000 that equals 3565841640000000

= 3769731740235027
