Alright, let's work through 42162763 times 72090275 step by step
42162763 × 72090275 = 72090275 × (42162763)
+ 72090275 × 3 that results in 216270825
+ 72090275 × 60 that equals 4325416500
+ 72090275 × 700 which equals 50463192500
+ 72090275 × 2000 that is equal 144180550000
+ 72090275 × 60000 giving us 4325416500000
+ 72090275 × 100000 that is equal 7209027500000
+ 72090275 × 2000000 that is equal 144180550000000
+ 72090275 × 40000000 yielding 2883611000000000

= 3039525179429825
