Divide the bulbs by gently pulling the smaller bulbs from the main plant base. This is also a good time to check the health of the original bulb. Check how firm it is, if it seems healthy then it can be replanted.
However, if it seems damaged, diseased, or shrivelled then it can be discarded. Before planting or storing the bulbs, ensure the dead foliage is cut off.
With tulip bulbs the best time to divide them is as soon as the leaves have died.
Dig up the bulbs and break them apart, replanting at a depth of around 3 inches. To give them the room they need to grow, position them in clusters of 5-7 bulbs around 6 inches apart. If you are planting more than one cluster, space the other clusters 10 inches from the other.