Alright, let's work through 12997921 times 23455063 step by step
12997921 × 23455063 = 23455063 × (12997921)
+ 23455063 × 1 that equals 23455063
+ 23455063 × 20 that results in 469101260
+ 23455063 × 900 giving us 21109556700
+ 23455063 × 7000 which equals 164185441000
+ 23455063 × 90000 that results in 2110955670000
+ 23455063 × 900000 giving us 21109556700000
+ 23455063 × 2000000 resulting in 46910126000000
+ 23455063 × 10000000 what gives us 234550630000000

= 304867055924023
