Alright, let's work through 73868327 times 64691243 step by step
73868327 × 64691243 = 64691243 × (73868327)
+ 64691243 × 7 giving us 452838701
+ 64691243 × 20 that results in 1293824860
+ 64691243 × 300 resulting in 19407372900
+ 64691243 × 8000 producing 517529944000
+ 64691243 × 60000 yielding 3881474580000
+ 64691243 × 800000 which equals 51752994400000
+ 64691243 × 3000000 that is equal 194073729000000
+ 64691243 × 70000000 producing 4528387010000000

= 4778633891960461
