No problem, we've got 3953 and 1577 to multiply
3953 × 1577 = 1577 × (3953)
+ 1577 × 3 what gives us 4731
+ 1577 × 50 which equals 78850
+ 1577 × 900 giving us 1419300
+ 1577 × 3000 that equals 4731000

= 6233881
