[Mark Creasy]

Hi there. Here’s how I just did it using Trapcode Form.
Create your particle: I made a 18px by 30px composition with one number in the middle, expanding its layer properties and keyframing the source every 4 frames over two seconds so it says 9, 3, 5, 0, 2, 8, 4, et cetera. Playback that comp to make sure it flows right.
Pre-compose that particle composition inside a fresh composition, and turn it off.
Make a solid, put the Form effect on it.
For my purposes, I changed the number of particles in Z to zero since I just want a grid and not a cube.
I changed the “z” position (last out of the 3 Position numbers) to bring them closer to the camera.
Change Particle to “Textured Polygon”, then under Texture choose Layer (this is my Numbers composition turned off), and “Random – Loop”.
Playback should now be a field of numbers all playing back randomly.
Change the particles in X and Y to make them more or less dense.