fix in calculating page fun

pagination/common/src/commonMain/kotlin/dev/inmo/micro_utils/pagination/Pagination.kt

@@ -1,6 +1,7 @@
 package dev.inmo.micro_utils.pagination
 
 import kotlin.math.ceil
+import kotlin.math.floor
 
 /**
  * Base interface of pagination
@@ -54,4 +55,8 @@ fun calculatePagesNumber(datasetSize: Int, pageSize: Int): Int =
 /**
  * @return calculated page number which can be correctly used in [PaginationResult] as [PaginationResult.page] value
  */
-fun calculatePage(firstIndex: Int, resultsSize: Int): Int = firstIndex / resultsSize
+fun calculatePage(firstIndex: Int, resultsSize: Int): Int = if (resultsSize > 0) {
+    floor(firstIndex.toFloat() / resultsSize).toInt()
+} else {
+    0
+}