```
wavelength = c / f
```
where:
* wavelength is the wavelength in meters (m)
* c is the speed of light (approximately 299,792,458 m/s)
* f is the frequency in Hertz (Hz)
In this case, the frequency is 830 kHz, which is equivalent to 830,000 Hz. Substituting this value into the formula, we get:
```
wavelength = 299,792,458 m/s / 830,000 Hz
```
```
wavelength ≈ 362.4 meters
```
Therefore, the wavelength of AM radio waves broadcasting at 830 kHz is approximately 362.4 meters.