Alright, let's work through 79787513 times 9435301 step by step
79787513 × 9435301 = 9435301 × (79787513)
+ 9435301 × 3 giving us 28305903
+ 9435301 × 10 that results in 94353010
+ 9435301 × 500 which equals 4717650500
+ 9435301 × 7000 what gives us 66047107000
+ 9435301 × 80000 what gives us 754824080000
+ 9435301 × 700000 that results in 6604710700000
+ 9435301 × 9000000 which equals 84917709000000
+ 9435301 × 70000000 what gives us 660471070000000

= 752819201196413
