Alright, let's work through 5199 times 8229 step by step
5199 × 8229 = 8229 × (5199)
+ 8229 × 9 giving us 74061
+ 8229 × 90 yielding 740610
+ 8229 × 100 giving us 822900
+ 8229 × 5000 giving us 41145000

= 42782571
