No problem, we've got 85329291 and 45337729 to multiply
85329291 × 45337729 = 45337729 × (85329291)
+ 45337729 × 1 what gives us 45337729
+ 45337729 × 90 that equals 4080395610
+ 45337729 × 200 yielding 9067545800
+ 45337729 × 9000 resulting in 408039561000
+ 45337729 × 20000 giving us 906754580000
+ 45337729 × 300000 what gives us 13601318700000
+ 45337729 × 5000000 giving us 226688645000000
+ 45337729 × 80000000 what gives us 3627018320000000

= 3868636271120139
