No problem, we've got 87794180 and 40159231 to multiply
87794180 × 40159231 = 40159231 × (87794180)
+ 40159231 × 0 producing 0
+ 40159231 × 80 what gives us 3212738480
+ 40159231 × 100 yielding 4015923100
+ 40159231 × 4000 that equals 160636924000
+ 40159231 × 90000 which equals 3614330790000
+ 40159231 × 700000 giving us 28111461700000
+ 40159231 × 7000000 producing 281114617000000
+ 40159231 × 80000000 that equals 3212738480000000

= 3525746755075580
