Alright, let's work through 78180515 times 23242130 step by step
78180515 × 23242130 = 23242130 × (78180515)
+ 23242130 × 5 what gives us 116210650
+ 23242130 × 10 which equals 232421300
+ 23242130 × 500 yielding 11621065000
+ 23242130 × 0000 resulting in 0
+ 23242130 × 80000 that equals 1859370400000
+ 23242130 × 100000 giving us 2324213000000
+ 23242130 × 8000000 yielding 185937040000000
+ 23242130 × 70000000 that is equal 1626949100000000

= 1817081693096950
