Alright, let's work through 5388 times 1231 step by step
5388 × 1231 = 1231 × (5388)
+ 1231 × 8 giving us 9848
+ 1231 × 80 that equals 98480
+ 1231 × 300 yielding 369300
+ 1231 × 5000 yielding 6155000

= 6632628
