Alright, let's work through 42709409 times 72634438 step by step
42709409 × 72634438 = 72634438 × (42709409)
+ 72634438 × 9 which equals 653709942
+ 72634438 × 00 what gives us 0
+ 72634438 × 400 producing 29053775200
+ 72634438 × 9000 that equals 653709942000
+ 72634438 × 00000 what gives us 0
+ 72634438 × 700000 producing 50844106600000
+ 72634438 × 2000000 what gives us 145268876000000
+ 72634438 × 40000000 resulting in 2905377520000000

= 3102173920027142
