Alright, let's work through 9940 times 1626 step by step
9940 × 1626 = 1626 × (9940)
+ 1626 × 0 what gives us 0
+ 1626 × 40 producing 65040
+ 1626 × 900 resulting in 1463400
+ 1626 × 9000 that results in 14634000

= 16162440
