No problem, we've got 72457232 and 68867689 to multiply
72457232 × 68867689 = 68867689 × (72457232)
+ 68867689 × 2 what gives us 137735378
+ 68867689 × 30 that is equal 2066030670
+ 68867689 × 200 producing 13773537800
+ 68867689 × 7000 giving us 482073823000
+ 68867689 × 50000 which equals 3443384450000
+ 68867689 × 400000 which equals 27547075600000
+ 68867689 × 2000000 yielding 137735378000000
+ 68867689 × 70000000 which equals 4820738230000000

= 4989962119176848
