1. Write down the conversion factor:
1 \, \text{L} = 1000 \, \text{ml}
2. Set up the conversion from milliliters to liters:
89.078 \, \text{ml} \times \frac{1 \, \text{L}}{1000 \, \text{ml}}
3. Perform the multiplication:
89.078 \times 0.001 = 0.089078 \, \text{L}
Hence, the answer is:
0.089078 \, \text{L}