In the division formula, the dividend and divisor are expanded or reduced by the same multiple at the same time (except 0), the quotient is unchanged, and the remainder is expanded or reduced by the same multiple. 4300÷300 is reduced by 100 times at the same time, and the quotient remains unchanged.
The names of each part of division include: dividend, divisor, divisor, equal sign and remainder. There are three types of division in primary school mathematics: integer division, fractional division and fractional division. In middle school mathematics, there are algebraic division, fractional division and other types of division.