Beauty of Math!

Hope you appreciate this beautiful arangement of numbers… I was quite stunned on watching it for the first time.. me a not so mathematical boy… LOL  
 
1 x 8 + 1 = 9
12 x 8 + 2 = 98
123 x 8 + 3 = 987
1234 x 8 + 4 = 9876
12345 x 8 + 5 = [...]