Alright, let's work through 42136862 times 49604321 step by step
42136862 × 49604321 = 49604321 × (42136862)
+ 49604321 × 2 producing 99208642
+ 49604321 × 60 producing 2976259260
+ 49604321 × 800 that equals 39683456800
+ 49604321 × 6000 which equals 297625926000
+ 49604321 × 30000 producing 1488129630000
+ 49604321 × 100000 yielding 4960432100000
+ 49604321 × 2000000 producing 99208642000000
+ 49604321 × 40000000 giving us 1984172840000000

= 2090170428580702
