Alright, let's work through 70818889 times 70649390 step by step
70818889 × 70649390 = 70649390 × (70818889)
+ 70649390 × 9 giving us 635844510
+ 70649390 × 80 yielding 5651951200
+ 70649390 × 800 resulting in 56519512000
+ 70649390 × 8000 that results in 565195120000
+ 70649390 × 10000 which equals 706493900000
+ 70649390 × 800000 giving us 56519512000000
+ 70649390 × 0000000 yielding 0
+ 70649390 × 70000000 that equals 4945457300000000

= 5003311308327710
