Alright, let's work through 6621 times 1788 step by step
6621 × 1788 = 1788 × (6621)
+ 1788 × 1 that results in 1788
+ 1788 × 20 what gives us 35760
+ 1788 × 600 that results in 1072800
+ 1788 × 6000 what gives us 10728000

= 11838348
