No problem, we've got 3950 and 7964 to multiply
3950 × 7964 = 7964 × (3950)
+ 7964 × 0 that is equal 0
+ 7964 × 50 that results in 398200
+ 7964 × 900 which equals 7167600
+ 7964 × 3000 that results in 23892000

= 31457800
