No problem, we've got 4157 and 4443 to multiply
4157 × 4443 = 4443 × (4157)
+ 4443 × 7 resulting in 31101
+ 4443 × 50 what gives us 222150
+ 4443 × 100 producing 444300
+ 4443 × 4000 giving us 17772000

= 18469551
