No problem, we've got 3957 and 5228 to multiply
3957 × 5228 = 5228 × (3957)
+ 5228 × 7 giving us 36596
+ 5228 × 50 that equals 261400
+ 5228 × 900 that is equal 4705200
+ 5228 × 3000 that is equal 15684000

= 20687196
