Alright, let's work through 16329919 times 29887372 step by step
16329919 × 29887372 = 29887372 × (16329919)
+ 29887372 × 9 that is equal 268986348
+ 29887372 × 10 that is equal 298873720
+ 29887372 × 900 resulting in 26898634800
+ 29887372 × 9000 yielding 268986348000
+ 29887372 × 20000 that equals 597747440000
+ 29887372 × 300000 that equals 8966211600000
+ 29887372 × 6000000 which equals 179324232000000
+ 29887372 × 10000000 which equals 298873720000000

= 488058363882868
