Alright, let's work through 42740760 times 81809258 step by step
42740760 × 81809258 = 81809258 × (42740760)
+ 81809258 × 0 that results in 0
+ 81809258 × 60 yielding 4908555480
+ 81809258 × 700 that is equal 57266480600
+ 81809258 × 0000 which equals 0
+ 81809258 × 40000 that equals 3272370320000
+ 81809258 × 700000 giving us 57266480600000
+ 81809258 × 2000000 resulting in 163618516000000
+ 81809258 × 40000000 which equals 3272370320000000

= 3496589861956080
