No problem, we've got 2891 and 1553 to multiply
2891 × 1553 = 1553 × (2891)
+ 1553 × 1 what gives us 1553
+ 1553 × 90 resulting in 139770
+ 1553 × 800 that results in 1242400
+ 1553 × 2000 that equals 3106000

= 4489723
