Alright, let's work through 4208 times 8121 step by step
4208 × 8121 = 8121 × (4208)
+ 8121 × 8 that results in 64968
+ 8121 × 00 that is equal 0
+ 8121 × 200 that is equal 1624200
+ 8121 × 4000 what gives us 32484000

= 34173168
