Let's calculate 8221 x 9121
8221 × 9121 = 9121 × (8221)
+ 9121 × 1 what gives us 9121
+ 9121 × 20 what gives us 182420
+ 9121 × 200 that equals 1824200
+ 9121 × 8000 that is equal 72968000

= 74983741
