Deutsche Bank AG has taken the first step to resolve allegations that it helped wealthy Russians launder billions of dollars, reaching a deal with New York’s Department of Financial Services that requires it to pay a $425 million penalty, the regulator said. The New York settlement, approved by the bank on Monday, resolves allegations that Deutsche Bank employees used a “mirror-trading scheme” to help wealthy Russians move $10 billion out of that country from 2011 through 2014.