Alright, let's work through 87147297 times 35536486 step by step
87147297 × 35536486 = 35536486 × (87147297)
+ 35536486 × 7 producing 248755402
+ 35536486 × 90 which equals 3198283740
+ 35536486 × 200 that equals 7107297200
+ 35536486 × 7000 yielding 248755402000
+ 35536486 × 40000 giving us 1421459440000
+ 35536486 × 100000 producing 3553648600000
+ 35536486 × 7000000 which equals 248755402000000
+ 35536486 × 80000000 that equals 2842918880000000

= 3096908699778342
