No problem, we've got 3978 and 4031 to multiply
3978 × 4031 = 4031 × (3978)
+ 4031 × 8 giving us 32248
+ 4031 × 70 producing 282170
+ 4031 × 900 that equals 3627900
+ 4031 × 3000 that is equal 12093000

= 16035318
