Standard Life Aberdeen paid out its September dividend on the 30th Sept.
https://www.standardlifeaberdeen.com/
It was 7.3p a share
https://www.lse.co.uk/rns/SLA/total-voting-rights-w5s1goqtue7qnsu.html
The total number of voting rights in the Company, as at 30 September 2020, is therefore 2,225,782,374
thus:-
2,225,782,374 x £0.073 = 162,482,113.302
https://www.hl.co.uk/shares/shares-search-results/s/standard-life-aberdeen-plc-ordinary-13-616
A yield of 9%