Alright, let's work through 8211 times 6790 step by step
8211 × 6790 = 6790 × (8211)
+ 6790 × 1 producing 6790
+ 6790 × 10 that equals 67900
+ 6790 × 200 giving us 1358000
+ 6790 × 8000 which equals 54320000

= 55752690
