Alright, let's work through 1915 times 6338 step by step
1915 × 6338 = 6338 × (1915)
+ 6338 × 5 which equals 31690
+ 6338 × 10 what gives us 63380
+ 6338 × 900 that equals 5704200
+ 6338 × 1000 which equals 6338000

= 12137270
