I memorised 3.14 at school. Yesterday I memorised the next few...
3.14159 26535
Today I memorised 89793 as well.
So now I can remember 3.14159 26535 89793
Or when put together 3.141592653589793
Tomorrow will learn the next few... all in blocks of five. Its quite easy if you label each block as a row of things you natually put in order. Say things in a nursery rhyme.