Alright, let's work through 2103 times 6723 step by step
2103 × 6723 = 6723 × (2103)
+ 6723 × 3 that equals 20169
+ 6723 × 00 which equals 0
+ 6723 × 100 what gives us 672300
+ 6723 × 2000 what gives us 13446000

= 14138469
