Alright, let's work through 87346204 times 46438109 step by step
87346204 × 46438109 = 46438109 × (87346204)
+ 46438109 × 4 that is equal 185752436
+ 46438109 × 00 giving us 0
+ 46438109 × 200 that is equal 9287621800
+ 46438109 × 6000 that is equal 278628654000
+ 46438109 × 40000 yielding 1857524360000
+ 46438109 × 300000 that results in 13931432700000
+ 46438109 × 7000000 that equals 325066763000000
+ 46438109 × 80000000 what gives us 3715048720000000

= 4056192542088236
