Alright, let's work through 5408 times 3705 step by step
5408 × 3705 = 3705 × (5408)
+ 3705 × 8 that equals 29640
+ 3705 × 00 producing 0
+ 3705 × 400 giving us 1482000
+ 3705 × 5000 that equals 18525000

= 20036640
