Alright, let's work through 7180 times 1724 step by step
7180 × 1724 = 1724 × (7180)
+ 1724 × 0 giving us 0
+ 1724 × 80 what gives us 137920
+ 1724 × 100 that results in 172400
+ 1724 × 7000 that results in 12068000

= 12378320
