Alright, let's work through 8100 times 4039 step by step
8100 × 4039 = 4039 × (8100)
+ 4039 × 0 which equals 0
+ 4039 × 00 giving us 0
+ 4039 × 100 that is equal 403900
+ 4039 × 8000 that results in 32312000

= 32715900
