Alright, let's work through 16508380 times 40742773 step by step
16508380 × 40742773 = 40742773 × (16508380)
+ 40742773 × 0 resulting in 0
+ 40742773 × 80 that is equal 3259421840
+ 40742773 × 300 what gives us 12222831900
+ 40742773 × 8000 that is equal 325942184000
+ 40742773 × 00000 what gives us 0
+ 40742773 × 500000 resulting in 20371386500000
+ 40742773 × 6000000 giving us 244456638000000
+ 40742773 × 10000000 which equals 407427730000000

= 672597178937740
