No problem, we've got 72003840 and 68358648 to multiply
72003840 × 68358648 = 68358648 × (72003840)
+ 68358648 × 0 producing 0
+ 68358648 × 40 what gives us 2734345920
+ 68358648 × 800 producing 54686918400
+ 68358648 × 3000 that is equal 205075944000
+ 68358648 × 00000 what gives us 0
+ 68358648 × 000000 that equals 0
+ 68358648 × 2000000 producing 136717296000000
+ 68358648 × 70000000 which equals 4785105360000000

= 4922085153208320
