The number `1035` is the smallest integer that exhibits a non frequent property: one its multiples, `3105 = 1035 * 3`, has its same digits but in different order, in other words, `3105`, is one of the permutations of `1035`.

The number `125874` is the first integer that has this property when the multiplier is `2`, thus: `125874 * 2 = 251748`

Make the function `search_permMult()`, that receives an upper bound, nMax and a factor k and will output the amount of pairs bellow nMax that are permuted when an integer of this range is multiplied by `k`. The pair will be counted if the multiple is less than `nMax`, too

Let'see some cases:
```python
search_permMult(10000, 7) === 1 # because we have the pair 1359, 9513
search_permMult(5000, 7) === 0 # no pairs found, as 9513 > 5000

search_permMult(10000, 4) === 2 # we have two pairs (1782, 7128) and (2178, 8712)
search_permMult(8000, 4) === 1 # only the pair (1782, 7128) 

search_permMult(5000, 3) === 1 # only the pair (1035, 3105)
search_permMult(10000, 3) === 2 # found pairs (1035, 3105) and (2475, 7425)
```
Features of the random Tests:
```
10000 <= nMax <= 100000
3 <= k <= 7
```
Enjoy it and happy coding!!

```python

USER_FILENAME = "<user_code>"
import sys, json, builtins
import math, heapq, bisect, itertools, functools, collections, statistics, fractions, decimal, operator, array, random, re, string, os, pathlib
try:
    import resource as _res
except Exception:
    _res = None
from collections import Counter, defaultdict, deque, OrderedDict
from functools import lru_cache, reduce
from itertools import accumulate, permutations, combinations, product
from math import gcd, ceil, floor, sqrt
from decimal import Decimal
try:
    from typing import *
except Exception:
    pass
try:
    sys.setrecursionlimit(1_000_000)
except Exception:
    pass
try:
    import site as _site
    try:
        _sys_sites = _site.getsitepackages() if hasattr(_site, "getsitepackages") else []
        for _p in _sys_sites:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
    try:
        _usp = _site.getusersitepackages()
        if isinstance(_usp, str):
            _usp = [_usp]
        for _p in _usp:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
except Exception:
    pass

def _disabled_input(*args, **kwargs):
    raise RuntimeError("input() is disabled in callable mode")
builtins.input = _disabled_input

ns = {"__name__": "__judge__"}  # prevent if __name__ == "__main__" blocks
for _k, _v in list(globals().items()):
    if not _k.startswith("_"):
        ns[_k] = _v
_CODE = 'def search_permMult(nMax, k):\n    def tod(n):\n        return "".join(sorted([d for d in str(n)]))\n    i = 1; cnt = 0\n    while i <= nMax // k:\n        if tod(i) == tod(i * k):\n            cnt += 1\n        i += 1\n    return cnt'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'search_permMult'
if _fn_name:
    if "Solution" in ns:
        try:
            _obj = ns["Solution"]()
            if hasattr(_obj, _fn_name):
                _target = getattr(_obj, _fn_name)
        except Exception:
            _target = None
    if _target is None and _fn_name in ns and callable(ns[_fn_name]):
        _target = ns[_fn_name]
# Fallback: if there's exactly one user-defined function, use it
if _target is None:
    _cands = [v for k, v in ns.items() if callable(v) and getattr(v, "__module__", "") in ("__judge__", "__main__")]
    _user_funcs = [c for c in _cands if getattr(c, "__name__", "").startswith("_") is False]
    if len(_user_funcs) == 1:
        _target = _user_funcs[0]
if _target is None:
    raise RuntimeError(f"Could not resolve callable '{_fn_name}'")

_raw = sys.stdin.read().strip()
if _raw:
    _parsed = json.loads(_raw)
    if isinstance(_parsed, dict):
        _kwargs = _parsed.get("kwargs", {})
        _args = _parsed.get("args", [])
    else:
        _args, _kwargs = _parsed, {}
else:
    _args, _kwargs = [], {}
if not isinstance(_args, (list, tuple)):
    _args = [_args]
_res = _target(*_args, **_kwargs)
try:
    sys.stdout.write(repr(_res) + "\n")
except Exception:
    pass

```

Measured memory_bytes: 6054