Alright, let's work through 42872683 times 79775125 step by step
42872683 × 79775125 = 79775125 × (42872683)
+ 79775125 × 3 that equals 239325375
+ 79775125 × 80 yielding 6382010000
+ 79775125 × 600 that is equal 47865075000
+ 79775125 × 2000 resulting in 159550250000
+ 79775125 × 70000 producing 5584258750000
+ 79775125 × 800000 that is equal 63820100000000
+ 79775125 × 2000000 producing 159550250000000
+ 79775125 × 40000000 that equals 3191005000000000

= 3420173645410375
