Alright, let's work through 12087885 times 29930504 step by step
12087885 × 29930504 = 29930504 × (12087885)
+ 29930504 × 5 resulting in 149652520
+ 29930504 × 80 producing 2394440320
+ 29930504 × 800 that is equal 23944403200
+ 29930504 × 7000 what gives us 209513528000
+ 29930504 × 80000 yielding 2394440320000
+ 29930504 × 000000 producing 0
+ 29930504 × 2000000 resulting in 59861008000000
+ 29930504 × 10000000 resulting in 299305040000000

= 361796490344040
