Alright, let's work through 6521 times 6335 step by step
6521 × 6335 = 6335 × (6521)
+ 6335 × 1 giving us 6335
+ 6335 × 20 that is equal 126700
+ 6335 × 500 yielding 3167500
+ 6335 × 6000 what gives us 38010000

= 41310535
