No problem, we've got 2400 and 4821 to multiply
2400 × 4821 = 4821 × (2400)
+ 4821 × 0 that equals 0
+ 4821 × 00 which equals 0
+ 4821 × 400 resulting in 1928400
+ 4821 × 2000 that results in 9642000

= 11570400
