I had a quick look to see how much our transportation will cost us when we travel to Hokkaido this summer. It looks like it will be around 50,000 yen each.
この場合、次のような言い方ができますよ。
ーI had a quick look to see how much our transportation will cost us when we travel to Hokkaido this summer. It looks like it will be around 50,000 yen each.
「夏、北海道に旅行する時交通費がいくらかかるかざっと見たら、一人50,000円くらいみたい」
to have a quick look to see how much our transportation will cost us で「交通費がいくらかかるかさっと見てみる」
ご参考まで!