Alright, let's work through 2155 times 6912 step by step
2155 × 6912 = 6912 × (2155)
+ 6912 × 5 which equals 34560
+ 6912 × 50 what gives us 345600
+ 6912 × 100 which equals 691200
+ 6912 × 2000 that is equal 13824000

= 14895360
