No problem, we've got 18207975 and 80792811 to multiply
18207975 × 80792811 = 80792811 × (18207975)
+ 80792811 × 5 yielding 403964055
+ 80792811 × 70 giving us 5655496770
+ 80792811 × 900 that equals 72713529900
+ 80792811 × 7000 what gives us 565549677000
+ 80792811 × 00000 yielding 0
+ 80792811 × 200000 that results in 16158562200000
+ 80792811 × 8000000 resulting in 646342488000000
+ 80792811 × 10000000 which equals 807928110000000

= 1471073482867725
