In 123456789, multiply one of the four numbers by the other four digits. The number cannot be repeated

In 123456789, multiply one of the four numbers by the other four digits. The number cannot be repeated

There are two types
1738 * 4 = 6952
1963 * 4 = 7852

1-9 nine numbers, two of which are multiplied by three are equal to the other four and cannot be repeated

27*198=5346
28*157=4396
39*186=7254
42*138=5796
48*159=7632

Divide four numbers by one to get the other four numbers. Fill in the formula with 1-9. It can't be repeated. How many formulas can there be?
Is a four digit divided by a number to get another four digits, a total of nine digits, can not be repeated

6952 ÷ 4 = 1738
7852 ÷ 4 = 1963