The phrase "a significant bit of" is correct and usable in written English.
It can be used to indicate a notable or considerable amount of something, often in a context where the quantity or importance is being emphasized.
Example: "The research provided a significant bit of evidence supporting the new theory."
Alternatives: "a considerable amount of" or "a substantial piece of".
"We did a significant bit of math," Duplessie said.
(A significant bit of praise from that review appears in another place, pages from the put-down).
Goldstein was immediately canned and, in a significant bit of symbolism, replaced with a former host of "Fox & Friends," Trump's favorite TV show.
They wondered if the blades had by chance closed uselessly on one of the nearly indestructible joints that connect drilling pipe -- a significant bit of misfortune, given a decision years before to outfit the Deepwater Horizon's blowout preventer with just one blind shear ram when other rigs were already beginning to use two of them to guard against just this possibility.
It is mainly implemented using C++, with a significant bit of Python.
You don't have to have a cabin to appreciate the sheer beauty of the Finnish lakes, which sprawl over quite a significant bit of geography.
The real battles are waged -- and this makes for an interesting, significant bit of semiotics -- between Kruger's all-for-themselves, power-structure-reinforcing mercenaries and Spider's crew of guerilla hackers and street soldiers, with neither camp looking quite so different from each other.
In LSB matching [4], if there is a mismatch between least significant bit of a byte in the cover image and next bit of the secret message to be embedded, then embedding, in general, is done by increasing or decreasing randomly the content of the byte of the cover image by 1, except at the boundary values.
Encoding an MV for each partition can take a significant number of bits, especially if small partition sizes are chosen.
For those redundant motion vectors, encoding them without exploiting the correlation among them can cost a significant number of bits.
The most significant bit of tailoring was an accounting trick called recouping costs.
