Alright, let's work through 99012740 times 25467813 step by step
99012740 × 25467813 = 25467813 × (99012740)
+ 25467813 × 0 that is equal 0
+ 25467813 × 40 producing 1018712520
+ 25467813 × 700 resulting in 17827469100
+ 25467813 × 2000 resulting in 50935626000
+ 25467813 × 10000 that is equal 254678130000
+ 25467813 × 000000 what gives us 0
+ 25467813 × 9000000 that equals 229210317000000
+ 25467813 × 90000000 yielding 2292103170000000

= 2521637946937620
