900 R 100
Work Step by Step
523 is larger than 470, so the first step in the long division will be to divide 523 into 4708. The quotient of $4708 \div 523$ will therefore be placed over the 8 in 470800. Since there must be a digit in the quotient placed above each digit in the dividend, the quotient for $470800 \div 523$ will be a 3 digit answer, with one digit over the 8, another digit over each of the ending zeroes. Since 900 R 100 is the only 3 digit answer given, 900 R 100 is the correct answer choice.