Alright, let's work through 8445 times 1875 step by step
8445 × 1875 = 1875 × (8445)
+ 1875 × 5 what gives us 9375
+ 1875 × 40 that equals 75000
+ 1875 × 400 that results in 750000
+ 1875 × 8000 yielding 15000000

= 15834375
