To convert 43 to binary: 43 ÷ 2 = 21 (Quotient), remainder 1 21 ÷ 2 = 10 (Quotient), remainder 1 10 ÷ 2 = 5 (Quotient), remainder 0 5 ÷ 2 = 2 (Quotient), remainder 1 2 ÷ 2 = 1 (Quotient), remainder 0 1 ÷ 2 = 0 (Quotient), remainder 1