Alright, let's work through 3937 times 3247 step by step
3937 × 3247 = 3247 × (3937)
+ 3247 × 7 which equals 22729
+ 3247 × 30 that is equal 97410
+ 3247 × 900 which equals 2922300
+ 3247 × 3000 that equals 9741000

= 12783439
