Why does dividing zero by a number using repeated subtraction doesn't work?

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I know that division can be represented as repeated subtraction, or as an opposite of multiplication.

For example, if we divide 6 by 2, we can say what number is multiplied by 2 gives us 6?, which in this case is number 3, and 3 is considered unique in this particular example because it is the only number that equals 6 divided by 2.

if I want to represent that same example as repeated subtraction, we say 6-2-2-2 = 0.

if we're dividing 0 by 6 using the same analogy, for example with multiplication 0 divided by 6 = 0, and 6*0 equal 0.

but when I use repeated subtraction and say 0-6 = (-6)- (6) = -12 … and so on we never reach zero, basically -∞.

So what I am missing here? Thank you.

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you are defining division as the number of times one number is subtracted by another until zero or less is obtained.

The number of times $0$ is subtacted by $6$ until zero or less is obtained is $0$ because subtracting $0$ by $6$ even once results in $-6$