No problem, we've got 3501 and 4721 to multiply
3501 × 4721 = 4721 × (3501)
+ 4721 × 1 that is equal 4721
+ 4721 × 00 that results in 0
+ 4721 × 500 what gives us 2360500
+ 4721 × 3000 resulting in 14163000

= 16528221
