No problem, we've got 80652884 and 78974364 to multiply
80652884 × 78974364 = 78974364 × (80652884)
+ 78974364 × 4 that is equal 315897456
+ 78974364 × 80 that results in 6317949120
+ 78974364 × 800 resulting in 63179491200
+ 78974364 × 2000 producing 157948728000
+ 78974364 × 50000 which equals 3948718200000
+ 78974364 × 600000 producing 47384618400000
+ 78974364 × 0000000 giving us 0
+ 78974364 × 80000000 that results in 6317949120000000

= 6369510218665776
