No problem, we've got 77346378 and 83921715 to multiply
77346378 × 83921715 = 83921715 × (77346378)
+ 83921715 × 8 producing 671373720
+ 83921715 × 70 that equals 5874520050
+ 83921715 × 300 producing 25176514500
+ 83921715 × 6000 which equals 503530290000
+ 83921715 × 40000 that is equal 3356868600000
+ 83921715 × 300000 resulting in 25176514500000
+ 83921715 × 7000000 giving us 587452005000000
+ 83921715 × 70000000 yielding 5874520050000000

= 6491040690798270
