Alright, let's work through 8227 times 1604 step by step
8227 × 1604 = 1604 × (8227)
+ 1604 × 7 that equals 11228
+ 1604 × 20 that results in 32080
+ 1604 × 200 yielding 320800
+ 1604 × 8000 giving us 12832000

= 13196108
