No problem, we've got 68987765 and 64906794 to multiply
68987765 × 64906794 = 64906794 × (68987765)
+ 64906794 × 5 yielding 324533970
+ 64906794 × 60 producing 3894407640
+ 64906794 × 700 which equals 45434755800
+ 64906794 × 7000 what gives us 454347558000
+ 64906794 × 80000 producing 5192543520000
+ 64906794 × 900000 what gives us 58416114600000
+ 64906794 × 8000000 producing 519254352000000
+ 64906794 × 60000000 producing 3894407640000000

= 4477774651375410
