Alright, let's work through 12819370 times 15209852 step by step
12819370 × 15209852 = 15209852 × (12819370)
+ 15209852 × 0 what gives us 0
+ 15209852 × 70 that is equal 1064689640
+ 15209852 × 300 producing 4562955600
+ 15209852 × 9000 which equals 136888668000
+ 15209852 × 10000 that is equal 152098520000
+ 15209852 × 800000 resulting in 12167881600000
+ 15209852 × 2000000 which equals 30419704000000
+ 15209852 × 10000000 resulting in 152098520000000

= 194980720433240
