Alright, let's work through 8315 times 1662 step by step
8315 × 1662 = 1662 × (8315)
+ 1662 × 5 which equals 8310
+ 1662 × 10 giving us 16620
+ 1662 × 300 which equals 498600
+ 1662 × 8000 giving us 13296000

= 13819530
