Alright, let's work through 1323 times 3945 step by step
1323 × 3945 = 3945 × (1323)
+ 3945 × 3 yielding 11835
+ 3945 × 20 that results in 78900
+ 3945 × 300 which equals 1183500
+ 3945 × 1000 giving us 3945000

= 5219235
