Alright, let's work through 4242718 times 82510412 step by step
4242718 × 82510412 = 82510412 × (4242718)
+ 82510412 × 8 that equals 660083296
+ 82510412 × 10 what gives us 825104120
+ 82510412 × 700 what gives us 57757288400
+ 82510412 × 2000 which equals 165020824000
+ 82510412 × 40000 what gives us 3300416480000
+ 82510412 × 200000 that equals 16502082400000
+ 82510412 × 4000000 yielding 330041648000000

= 350068410179816
