No problem, we've got 4677 and 4524 to multiply
4677 × 4524 = 4524 × (4677)
+ 4524 × 7 which equals 31668
+ 4524 × 70 that equals 316680
+ 4524 × 600 producing 2714400
+ 4524 × 4000 that is equal 18096000

= 21158748
