• negative numbers are accepted
• 1/100 = 0 with 1 in reminder
• division by zero results in IllegalArgumentException thrown
• the factory pattern is used to add different types of bar division output
• covered by tests

_78945|4
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 _    |19736
_38
 36
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 _29
  28
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  _14
   12
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   _25
    24
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     1