Alright, let's work through 3315 times 4103 step by step
3315 × 4103 = 4103 × (3315)
+ 4103 × 5 that equals 20515
+ 4103 × 10 producing 41030
+ 4103 × 300 giving us 1230900
+ 4103 × 3000 resulting in 12309000

= 13601445
