Alright, let's work through 40248185 times 13390474 step by step
40248185 × 13390474 = 13390474 × (40248185)
+ 13390474 × 5 which equals 66952370
+ 13390474 × 80 that equals 1071237920
+ 13390474 × 100 that results in 1339047400
+ 13390474 × 8000 resulting in 107123792000
+ 13390474 × 40000 resulting in 535618960000
+ 13390474 × 200000 producing 2678094800000
+ 13390474 × 0000000 what gives us 0
+ 13390474 × 40000000 producing 535618960000000

= 538942274789690
