Make string with specified number of dots, in rows of 10. Useful to show a toddler which is the bigger number.

dots.py

def arrange_dots(number):
    """Make string with specified number of dots, in rows of 10.                
    Useful to show a toddler which is the bigger number.                        
    """
    tens = number // 10
    ones = number % 10
    row_of_ten = '.' * 10 + '\n'
    rectangle = '\n' + row_of_ten * tens
    return(rectangle + '.' * ones)

if __name__ == '__main__':
    print(arrange_dots(72))
    print(arrange_dots(56))
    print()