No problem, we've got 80799289 and 71346850 to multiply
80799289 × 71346850 = 71346850 × (80799289)
+ 71346850 × 9 giving us 642121650
+ 71346850 × 80 giving us 5707748000
+ 71346850 × 200 that is equal 14269370000
+ 71346850 × 9000 giving us 642121650000
+ 71346850 × 90000 giving us 6421216500000
+ 71346850 × 700000 producing 49942795000000
+ 71346850 × 0000000 that results in 0
+ 71346850 × 80000000 which equals 5707748000000000

= 5764774752389650
