∀ {𝕜 : Type u_1} [inst : NontriviallyNormedField 𝕜] {x : 𝕜} {𝕜' : Type u_6} [inst_1 : NormedDivisionRing 𝕜']
  [inst_2 : NormedAlgebra 𝕜 𝕜'] {n : ℕ} (f : 𝕜 → 𝕜') (c : 𝕜'),
  iteratedDeriv n (fun x => f x / c) x = iteratedDeriv n f x / c