We're going to solve 6721 multiplied by 4207
6721 × 4207 = 4207 × (6721)
+ 4207 × 1 what gives us 4207
+ 4207 × 20 yielding 84140
+ 4207 × 700 which equals 2944900
+ 4207 × 6000 yielding 25242000

= 28275247
