Alright, let's work through 81688162 times 33136942 step by step
81688162 × 33136942 = 33136942 × (81688162)
+ 33136942 × 2 what gives us 66273884
+ 33136942 × 60 resulting in 1988216520
+ 33136942 × 100 producing 3313694200
+ 33136942 × 8000 yielding 265095536000
+ 33136942 × 80000 that equals 2650955360000
+ 33136942 × 600000 yielding 19882165200000
+ 33136942 × 1000000 resulting in 33136942000000
+ 33136942 × 80000000 that results in 2650955360000000

= 2706895886280604
