$$\frac{h^7 \cdot (h^4)^6}{h^4} = \frac{h^7 \cdot h^{4\cdot 6}}{h^4} = \frac{h^7 \cdot h^{24}}{h^4} = \frac{h^{7+24}}{h^4} = \frac{h^{31}}{h^4} = h^{31-4} = h^{27}$$
Ответ: $$h^{27}$$