Alright, let's work through 8384762 times 79136537 step by step
8384762 × 79136537 = 79136537 × (8384762)
+ 79136537 × 2 what gives us 158273074
+ 79136537 × 60 what gives us 4748192220
+ 79136537 × 700 giving us 55395575900
+ 79136537 × 4000 that equals 316546148000
+ 79136537 × 80000 producing 6330922960000
+ 79136537 × 300000 that results in 23740961100000
+ 79136537 × 8000000 giving us 633092296000000

= 663541028249194
