Alright, let's work through 5631 times 3512 step by step
5631 × 3512 = 3512 × (5631)
+ 3512 × 1 that results in 3512
+ 3512 × 30 that results in 105360
+ 3512 × 600 that is equal 2107200
+ 3512 × 5000 giving us 17560000

= 19776072
