Alright, let's work through 6721 times 9807 step by step
6721 × 9807 = 9807 × (6721)
+ 9807 × 1 yielding 9807
+ 9807 × 20 yielding 196140
+ 9807 × 700 yielding 6864900
+ 9807 × 6000 that is equal 58842000

= 65912847
