CoinUtil.py

class CoinUtil:
  
  def __init__(self, coins = [], amount = 0):
    self._coins = coins
    self._amonth = amount

  def coins_return(self):
    print('--- get money for :', self._amonth)
    coins = self._coins
    amount =  self._amonth
    result = {}

    for coin in sorted(coins, key=int, reverse=True): # alway descending sorted before calculate
      if(amount >= coin):
        number_coin, amount = divmod(amount, coin) #to find coin and remaining amount
        result['coin({})'.format(coin)] = number_coin #prepare result
    return result

## Running example is below (use python 3)
# define number of coins parameter first e.g. coins=[1,2,5,10]
# and init amount e.g. amount=1024
# to calculate just run coins_return()

result = CoinUtil(coins=[1,2,5,10], amount=1024).coins_return()
print('## result = {}'.format(result))

example result:
--- get money for : 1024

result = {'coin(10)': 102, 'coin(2)': 2}

--- get money for : 97

result = {'coin(10)': 9, 'coin(5)': 1, 'coin(2)': 1}

--- get money for : 98

result = {'coin(10)': 9, 'coin(5)': 1, 'coin(2)': 1, 'coin(1)': 1}