Germany spent all its reserves in the First World War and the Treaty of Versailles had made things worse by taking away some of the areas from which it gained wealth, for example the coal fields in Silesia
The reparations payments were totally unmanageable for Germany and the leading politicians appealed to the Allies for the payments to be reduced but they refused
The Weimar government called on the citizens of the Ruhr to passively resist the French, and the citizens went on strike thereby obstructing the French and collecting the materials
The occupation of the Ruhr by the French further worsened Germany's financial problems because the Ruhr contained many of its coal, iron and steel works along with a high proportion of its factories
When a government prints too much money, the value of each banknote decreases, meaning the things that banknote can buy also decreases, until the banknotes become worthless
The Kaiser's government had printed more money during the war, then the Weimar government printed more money to pay for the post-war shortages between 1918 and 1922, and finally when the French invaded the Ruhr in January 1923 the government printed even more money to pay the strikers and to make up for the lost income from the Ruhr
The price of goods increased rapidly, even day by day - a loaf of bread that cost 1 mark in 1919 cost 100 marks in 1922 and 200 billion marks by the end of 1923
There were winners and losers - anyone who had debt such as loans or mortgages were able to pay these off easily, and those who created raw materials or products such as farmers were paid very well for their products, but fixed rents for shops and businesses became very cheap
Many more people lost than won - anyone on a fixed income found themselves destitute, and savings became completely worthless, hitting the middle classes hard
Probably most damaging of all was that foreign suppliers began to refuse to be paid in marks, meaning that essentials were not imported into the country leading to severe shortages
The hyperinflation caused real damage to the Weimar government - it showed the government to be weak, it caused real damage to nearly everybody especially the middle classes who had lost their life savings, and the failures of the government emboldened the extremist parties who gained support from those who felt completely abandoned