Alright, let's work through 42076359 times 81144729 step by step
42076359 × 81144729 = 81144729 × (42076359)
+ 81144729 × 9 yielding 730302561
+ 81144729 × 50 producing 4057236450
+ 81144729 × 300 that is equal 24343418700
+ 81144729 × 6000 producing 486868374000
+ 81144729 × 70000 what gives us 5680131030000
+ 81144729 × 000000 that equals 0
+ 81144729 × 2000000 that equals 162289458000000
+ 81144729 × 40000000 giving us 3245789160000000

= 3414274748361711
