Alright, let's work through 77368328 times 63073197 step by step
77368328 × 63073197 = 63073197 × (77368328)
+ 63073197 × 8 yielding 504585576
+ 63073197 × 20 that equals 1261463940
+ 63073197 × 300 giving us 18921959100
+ 63073197 × 8000 what gives us 504585576000
+ 63073197 × 60000 producing 3784391820000
+ 63073197 × 300000 yielding 18921959100000
+ 63073197 × 7000000 what gives us 441512379000000
+ 63073197 × 70000000 that results in 4415123790000000

= 4879867793504616
