Alright, let's work through 45428955 times 40253555 step by step
45428955 × 40253555 = 40253555 × (45428955)
+ 40253555 × 5 what gives us 201267775
+ 40253555 × 50 what gives us 2012677750
+ 40253555 × 900 resulting in 36228199500
+ 40253555 × 8000 producing 322028440000
+ 40253555 × 20000 giving us 805071100000
+ 40253555 × 400000 what gives us 16101422000000
+ 40253555 × 5000000 yielding 201267775000000
+ 40253555 × 40000000 that is equal 1610142200000000

= 1828676938685025
