No problem, we've got 78043342 and 80518811 to multiply
78043342 × 80518811 = 80518811 × (78043342)
+ 80518811 × 2 giving us 161037622
+ 80518811 × 40 producing 3220752440
+ 80518811 × 300 what gives us 24155643300
+ 80518811 × 3000 what gives us 241556433000
+ 80518811 × 40000 producing 3220752440000
+ 80518811 × 000000 giving us 0
+ 80518811 × 8000000 what gives us 644150488000000
+ 80518811 × 70000000 that results in 5636316770000000

= 6283957104306362
