No problem, we've got 78510584 and 72216812 to multiply
78510584 × 72216812 = 72216812 × (78510584)
+ 72216812 × 4 producing 288867248
+ 72216812 × 80 what gives us 5777344960
+ 72216812 × 500 which equals 36108406000
+ 72216812 × 0000 that equals 0
+ 72216812 × 10000 that equals 722168120000
+ 72216812 × 500000 yielding 36108406000000
+ 72216812 × 8000000 what gives us 577734496000000
+ 72216812 × 70000000 which equals 5055176840000000

= 5669784084738208
