Alright, let's work through 71452599 times 17987649 step by step
71452599 × 17987649 = 17987649 × (71452599)
+ 17987649 × 9 producing 161888841
+ 17987649 × 90 that equals 1618888410
+ 17987649 × 500 that equals 8993824500
+ 17987649 × 2000 that equals 35975298000
+ 17987649 × 50000 that equals 899382450000
+ 17987649 × 400000 yielding 7195059600000
+ 17987649 × 1000000 that equals 17987649000000
+ 17987649 × 70000000 yielding 1259135430000000

= 1285264270949751
