Alright, let's work through 9821 times 6435 step by step
9821 × 6435 = 6435 × (9821)
+ 6435 × 1 giving us 6435
+ 6435 × 20 what gives us 128700
+ 6435 × 800 which equals 5148000
+ 6435 × 9000 that is equal 57915000

= 63198135
