Alright, let's work through 5206 times 5355 step by step
5206 × 5355 = 5355 × (5206)
+ 5355 × 6 yielding 32130
+ 5355 × 00 that is equal 0
+ 5355 × 200 that is equal 1071000
+ 5355 × 5000 giving us 26775000

= 27878130
