Alright, let's work through 9907 times 1527 step by step
9907 × 1527 = 1527 × (9907)
+ 1527 × 7 that equals 10689
+ 1527 × 00 that is equal 0
+ 1527 × 900 that equals 1374300
+ 1527 × 9000 that equals 13743000

= 15127989
