FloatDivision.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.1;

import "@openzeppelin/contracts/utils/Strings.sol";

// This allows Float(Decimal) Division in solidity and returns result as string
contract FloatDivision {
    using Strings for uint256;

    function division(
        uint256 decimalPlaces,
        uint256 numerator,
        uint256 denominator
    )
        public
        pure
        returns (uint256 quotient, uint256 remainder, string memory result)
    {
        uint256 factor = 10 ** decimalPlaces;
        quotient = numerator / denominator;
        bool rounding = 2 * ((numerator * factor) % denominator) >= denominator;
        remainder = ((numerator * factor) / denominator) % factor;
        if (rounding) {
            remainder += 1;
        }
        result = string(
            abi.encodePacked(
                quotient.toString(),
                ".",
                numToFixedLengthStr(decimalPlaces, remainder)
            )
        );
    }

    function numToFixedLengthStr(
        uint256 decimalPlaces,
        uint256 num
    ) internal pure returns (string memory result) {
        bytes memory byteString;
        for (uint256 i = 0; i < decimalPlaces; i++) {
            uint256 remainder = num % 10;
            byteString = abi.encodePacked(remainder.toString(), byteString);
            num = num / 10;
        }
        result = string(byteString);
    }
}