Alright, let's work through 12987648 times 61274189 step by step
12987648 × 61274189 = 61274189 × (12987648)
+ 61274189 × 8 resulting in 490193512
+ 61274189 × 40 yielding 2450967560
+ 61274189 × 600 what gives us 36764513400
+ 61274189 × 7000 which equals 428919323000
+ 61274189 × 80000 what gives us 4901935120000
+ 61274189 × 900000 yielding 55146770100000
+ 61274189 × 2000000 which equals 122548378000000
+ 61274189 × 10000000 giving us 612741890000000

= 795807598217472
