Alright, let's work through 1724 times 6678 step by step
1724 × 6678 = 6678 × (1724)
+ 6678 × 4 resulting in 26712
+ 6678 × 20 producing 133560
+ 6678 × 700 what gives us 4674600
+ 6678 × 1000 giving us 6678000

= 11512872
