Alright, let's work through 87306087 times 44261138 step by step
87306087 × 44261138 = 44261138 × (87306087)
+ 44261138 × 7 producing 309827966
+ 44261138 × 80 that equals 3540891040
+ 44261138 × 000 resulting in 0
+ 44261138 × 6000 what gives us 265566828000
+ 44261138 × 00000 resulting in 0
+ 44261138 × 300000 that is equal 13278341400000
+ 44261138 × 7000000 which equals 309827966000000
+ 44261138 × 80000000 yielding 3540891040000000

= 3864266764947006
