Alright, let's work through 23143894 times 49802501 step by step
23143894 × 49802501 = 49802501 × (23143894)
+ 49802501 × 4 that is equal 199210004
+ 49802501 × 90 resulting in 4482225090
+ 49802501 × 800 which equals 39842000800
+ 49802501 × 3000 that results in 149407503000
+ 49802501 × 40000 that equals 1992100040000
+ 49802501 × 100000 which equals 4980250100000
+ 49802501 × 3000000 yielding 149407503000000
+ 49802501 × 20000000 which equals 996050020000000

= 1152623804078894
