No problem, we've got 80812987 and 41662811 to multiply
80812987 × 41662811 = 41662811 × (80812987)
+ 41662811 × 7 yielding 291639677
+ 41662811 × 80 that is equal 3333024880
+ 41662811 × 900 yielding 37496529900
+ 41662811 × 2000 that results in 83325622000
+ 41662811 × 10000 what gives us 416628110000
+ 41662811 × 800000 giving us 33330248800000
+ 41662811 × 0000000 that results in 0
+ 41662811 × 80000000 that equals 3333024880000000

= 3366896203726457
