Alright, let's work through 1388 times 1117 step by step
1388 × 1117 = 1117 × (1388)
+ 1117 × 8 yielding 8936
+ 1117 × 80 producing 89360
+ 1117 × 300 what gives us 335100
+ 1117 × 1000 that equals 1117000

= 1550396
