Extract a sub-matrix from a very big matrix

I have a matrix of size 112 x 1200. I want to separate them into 6 matrices each of size 112 x 200. How can i do it?

Answer 1

[Birdman]

reshape(a,[],200,6)

[Ajay Ganti]

Thanks for the solution. when i applied reshape(a,[],200,6), it became as 112 x 200 x 6; Now what i want each 112 x 200 in separate variables like a1, a2, a3, a4, a5, a6. Please help

[Ajay Ganti]

Thank you, i got it by doing as a1=a(:,:,1); and so on..