Alright, let's work through 5399 times 2199 step by step
5399 × 2199 = 2199 × (5399)
+ 2199 × 9 producing 19791
+ 2199 × 90 what gives us 197910
+ 2199 × 300 that is equal 659700
+ 2199 × 5000 that equals 10995000

= 11872401
