Alright, let's work through 9415 times 13 step by step
9415 × 13 = 13 × (9415)
+ 13 × 5 what gives us 65
+ 13 × 10 what gives us 130
+ 13 × 400 yielding 5200
+ 13 × 9000 that is equal 117000

= 122395
