No problem, we've got 80317507 and 84470708 to multiply
80317507 × 84470708 = 84470708 × (80317507)
+ 84470708 × 7 what gives us 591294956
+ 84470708 × 00 that equals 0
+ 84470708 × 500 which equals 42235354000
+ 84470708 × 7000 which equals 591294956000
+ 84470708 × 10000 yielding 844707080000
+ 84470708 × 300000 giving us 25341212400000
+ 84470708 × 0000000 producing 0
+ 84470708 × 80000000 that equals 6757656640000000

= 6784476681084956
