Alright, let's work through 42483634 times 89218572 step by step
42483634 × 89218572 = 89218572 × (42483634)
+ 89218572 × 4 what gives us 356874288
+ 89218572 × 30 what gives us 2676557160
+ 89218572 × 600 producing 53531143200
+ 89218572 × 3000 resulting in 267655716000
+ 89218572 × 80000 yielding 7137485760000
+ 89218572 × 400000 producing 35687428800000
+ 89218572 × 2000000 that equals 178437144000000
+ 89218572 × 40000000 yielding 3568742880000000

= 3790329158850648
