Alright, let's work through 40527917 times 81708719 step by step
40527917 × 81708719 = 81708719 × (40527917)
+ 81708719 × 7 resulting in 571961033
+ 81708719 × 10 what gives us 817087190
+ 81708719 × 900 which equals 73537847100
+ 81708719 × 7000 which equals 571961033000
+ 81708719 × 20000 producing 1634174380000
+ 81708719 × 500000 producing 40854359500000
+ 81708719 × 0000000 producing 0
+ 81708719 × 40000000 that equals 3268348760000000

= 3311484181808323
