No problem, we've got 3944 and 7910 to multiply
3944 × 7910 = 7910 × (3944)
+ 7910 × 4 that is equal 31640
+ 7910 × 40 which equals 316400
+ 7910 × 900 yielding 7119000
+ 7910 × 3000 yielding 23730000

= 31197040
