`multipleOf` validation is incorrect for large integers

[TomerAberbach]

What version of Ajv are you using? Does the issue happen if you use the latest version?

Latest (v8.17.1)

Ajv options object

Any options.

JSON Schema

{ "multipleOf": 1 }

Sample data

1e21

What results did you expect?

1e21 should validate against multipleOf: 1, but it doesn't.

Are you going to resolve the issue?

Yup: #2562