Alright, let's work through 1392 times 5592 step by step
1392 × 5592 = 5592 × (1392)
+ 5592 × 2 giving us 11184
+ 5592 × 90 giving us 503280
+ 5592 × 300 that is equal 1677600
+ 5592 × 1000 giving us 5592000

= 7784064
