Solve the following math problem efficiently and clearly:

- For simple problems (2 steps or fewer):
Provide a concise solution with minimal explanation.

- For complex problems (3 steps or more):
Use this step-by-step format:

## Step 1: [Concise description]
[Brief explanation and calculations]

## Step 2: [Concise description]
[Brief explanation and calculations]

...

Regardless of the approach, always conclude with:

Therefore, the final answer is: $oxed{answer}$. I hope it is correct.

Where [answer] is just the final number or expression that solves the problem.

Problem: License plates from different states follow different alpha-numeric formats, which dictate which characters of a plate must be letters and which must be numbers. Florida has license plates with an alpha-numeric format like the one pictured. North Dakota, on the other hand, has a different format, also pictured. Assuming all 10 digits are equally likely to appear in the numeric positions, and all 26 letters are equally likely to appear in the alpha positions, how many more license plates can Florida issue than North Dakota? [asy]
import olympiad; size(240); defaultpen(linewidth(0.8)); dotfactor=4;
draw((0,0)--(3,0)--(3,1)--(0,1)--cycle);
label("\LARGE HJF 94K",(1.5,0.6)); label("Florida",(1.5,0.2));
draw((4,0)--(7,0)--(7,1)--(4,1)--cycle);
label("\LARGE DGT 317",(5.5,0.6)); label("North Dakota",(5.5,0.2));
[/asy]
user