Assuming integers:
52 * 1 = 26 * 2 = 13 * 3
It is blank times 52.
3 times blank equals 18,000 = 54000
It is: 4 times 13 equals 52
Blank = zero.
7 times blank = 2 times blank
It is: 9 times 7 = 63
26 times 2 equals 52
blank = 9
22.1133444 approx
The answer is three. 6 x 3 = 18
52 times 1 equals 52 2 times 26 equals 52
52