Alright, let's work through 9960 times 1353 step by step
9960 × 1353 = 1353 × (9960)
+ 1353 × 0 that is equal 0
+ 1353 × 60 which equals 81180
+ 1353 × 900 that results in 1217700
+ 1353 × 9000 that equals 12177000

= 13475880
