No problem, we've got 81707011 and 78310498 to multiply
81707011 × 78310498 = 78310498 × (81707011)
+ 78310498 × 1 yielding 78310498
+ 78310498 × 10 which equals 783104980
+ 78310498 × 000 that results in 0
+ 78310498 × 7000 yielding 548173486000
+ 78310498 × 00000 producing 0
+ 78310498 × 700000 resulting in 54817348600000
+ 78310498 × 1000000 that results in 78310498000000
+ 78310498 × 80000000 that equals 6264839840000000

= 6398516721501478
