No problem, we've got 80379529 and 70557180 to multiply
80379529 × 70557180 = 70557180 × (80379529)
+ 70557180 × 9 producing 635014620
+ 70557180 × 20 giving us 1411143600
+ 70557180 × 500 which equals 35278590000
+ 70557180 × 9000 giving us 635014620000
+ 70557180 × 70000 that is equal 4939002600000
+ 70557180 × 300000 which equals 21167154000000
+ 70557180 × 0000000 producing 0
+ 70557180 × 80000000 yielding 5644574400000000

= 5671352895968220
