Alright, let's work through 13502437 times 99178743 step by step
13502437 × 99178743 = 99178743 × (13502437)
+ 99178743 × 7 that is equal 694251201
+ 99178743 × 30 producing 2975362290
+ 99178743 × 400 that equals 39671497200
+ 99178743 × 2000 yielding 198357486000
+ 99178743 × 00000 producing 0
+ 99178743 × 500000 giving us 49589371500000
+ 99178743 × 3000000 giving us 297536229000000
+ 99178743 × 10000000 that is equal 991787430000000

= 1339154729096691
