No problem, we've got 9840 and 5790 to multiply
9840 × 5790 = 5790 × (9840)
+ 5790 × 0 producing 0
+ 5790 × 40 what gives us 231600
+ 5790 × 800 giving us 4632000
+ 5790 × 9000 that is equal 52110000

= 56973600
