Alright, let's work through 5321711 times 67278461 step by step
5321711 × 67278461 = 67278461 × (5321711)
+ 67278461 × 1 what gives us 67278461
+ 67278461 × 10 which equals 672784610
+ 67278461 × 700 what gives us 47094922700
+ 67278461 × 1000 what gives us 67278461000
+ 67278461 × 20000 which equals 1345569220000
+ 67278461 × 300000 giving us 20183538300000
+ 67278461 × 5000000 producing 336392305000000

= 358036525966771
