Alright, let's work through 1315 times 8629 step by step
1315 × 8629 = 8629 × (1315)
+ 8629 × 5 which equals 43145
+ 8629 × 10 that is equal 86290
+ 8629 × 300 what gives us 2588700
+ 8629 × 1000 resulting in 8629000

= 11347135
