No problem, we've got 72008784 and 88734699 to multiply
72008784 × 88734699 = 88734699 × (72008784)
+ 88734699 × 4 yielding 354938796
+ 88734699 × 80 resulting in 7098775920
+ 88734699 × 700 yielding 62114289300
+ 88734699 × 8000 that is equal 709877592000
+ 88734699 × 00000 what gives us 0
+ 88734699 × 000000 producing 0
+ 88734699 × 2000000 resulting in 177469398000000
+ 88734699 × 70000000 yielding 6211428930000000

= 6389677773596016
