91.63 ÷ 4.31

Let’s divide 91.63 by 4.31 step by step: First, we align the decimal points in both numbers. Then, we divide 91 by 4, which equals 22 with a remainder of 3. Next, we bring down the next digit, 6, and divide 36 by 4, which equals 9 with no remainder. Finally, we bring down the last digit, 3, and divide 31 by 4, which equals 7 with a remainder of 3. Therefore, 91.63 ÷ 4.31 equals 21.27.