Alright, let's work through 42469732 times 81391395 step by step
42469732 × 81391395 = 81391395 × (42469732)
+ 81391395 × 2 producing 162782790
+ 81391395 × 30 resulting in 2441741850
+ 81391395 × 700 that equals 56973976500
+ 81391395 × 9000 giving us 732522555000
+ 81391395 × 60000 which equals 4883483700000
+ 81391395 × 400000 what gives us 32556558000000
+ 81391395 × 2000000 producing 162782790000000
+ 81391395 × 40000000 producing 3255655800000000

= 3456670732756140
