No problem, we've got 81726549 and 78492378 to multiply
81726549 × 78492378 = 78492378 × (81726549)
+ 78492378 × 9 that equals 706431402
+ 78492378 × 40 which equals 3139695120
+ 78492378 × 500 producing 39246189000
+ 78492378 × 6000 resulting in 470954268000
+ 78492378 × 20000 giving us 1569847560000
+ 78492378 × 700000 resulting in 54944664600000
+ 78492378 × 1000000 that results in 78492378000000
+ 78492378 × 80000000 producing 6279390240000000

= 6414911176743522
