Alright, let's work through 4212 times 4903 step by step
4212 × 4903 = 4903 × (4212)
+ 4903 × 2 giving us 9806
+ 4903 × 10 which equals 49030
+ 4903 × 200 that is equal 980600
+ 4903 × 4000 resulting in 19612000

= 20651436
