Alright, let's work through 7819 times 5600 step by step
7819 × 5600 = 5600 × (7819)
+ 5600 × 9 giving us 50400
+ 5600 × 10 resulting in 56000
+ 5600 × 800 producing 4480000
+ 5600 × 7000 resulting in 39200000

= 43786400
