Alright, let's work through 27123205 times 19620823 step by step
27123205 × 19620823 = 19620823 × (27123205)
+ 19620823 × 5 that equals 98104115
+ 19620823 × 00 giving us 0
+ 19620823 × 200 that results in 3924164600
+ 19620823 × 3000 that results in 58862469000
+ 19620823 × 20000 yielding 392416460000
+ 19620823 × 100000 resulting in 1962082300000
+ 19620823 × 7000000 that equals 137345761000000
+ 19620823 × 20000000 that equals 392416460000000

= 532179604497715
