Alright, let's work through 12326814 times 20163554 step by step
12326814 × 20163554 = 20163554 × (12326814)
+ 20163554 × 4 what gives us 80654216
+ 20163554 × 10 resulting in 201635540
+ 20163554 × 800 that equals 16130843200
+ 20163554 × 6000 which equals 120981324000
+ 20163554 × 20000 that equals 403271080000
+ 20163554 × 300000 producing 6049066200000
+ 20163554 × 2000000 which equals 40327108000000
+ 20163554 × 10000000 giving us 201635540000000

= 248552379736956
