Alright, let's work through 7843 times 3620 step by step
7843 × 3620 = 3620 × (7843)
+ 3620 × 3 producing 10860
+ 3620 × 40 what gives us 144800
+ 3620 × 800 that equals 2896000
+ 3620 × 7000 what gives us 25340000

= 28391660
