Alright, let's work through 45145394 times 42385067 step by step
45145394 × 42385067 = 42385067 × (45145394)
+ 42385067 × 4 that results in 169540268
+ 42385067 × 90 which equals 3814656030
+ 42385067 × 300 producing 12715520100
+ 42385067 × 5000 what gives us 211925335000
+ 42385067 × 40000 which equals 1695402680000
+ 42385067 × 100000 that is equal 4238506700000
+ 42385067 × 5000000 that equals 211925335000000
+ 42385067 × 40000000 what gives us 1695402680000000

= 1913490549431398
