We look at the division of 18893128 by 866 
The aim is to understand the frequency of 866 in 18893128.

Advancing to step 1:
866 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 866

Moving on to step 2:
When dividing 18 by 866, we get 0 with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Grab the next digit (8) from the dividend, add it to 18, then carry on: 188 / 866

Moving on to step 3:
If we divide 188 by 866, we get 0 and a remainder of 188.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 188, we get 188.
Append the next digit (9) from the dividend to 188 and continue with: 1889 / 866

On to step 4:
The number 866 fits into 1889 2 times, leaving a remainder of 157.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 157 after subtracting 1732 from 1889.
Bring next digit (3) of the dividend behind the 157 and repeat the process: 1573 / 866

Going ahead to step 5:
When dividing 1573 by 866, we get 1 with a remainder of 707.
Write down 1 as next digit of the result. 
Result so far: 21.0
Deduct 866 from 1573 and we're left with 707.
Grab the next digit (1) from the dividend, add it to 707, then carry on: 7071 / 866

Going ahead to step 6:
866 goes into 7071 8 times with a remainder of 143.
The number 8 becomes the next digit in our result. 
Result so far: 218.0
Deduct 6928 from 7071 and we're left with 143.
Fetch the next digit (2) from the dividend, attach it to 143 and continue: 1432 / 866

Moving on to step 7:
If we divide 1432 by 866, we get 1 and a remainder of 566.
The next digit of our result is 1. 
Result so far: 2181.0
If we take 866 away from 1432, we end up with 566.
Append the next digit (8) from the dividend to 566 and continue with: 5668 / 866

Advancing to step 8:
When dividing 5668 by 866, we get 6 with a remainder of 472.
Record the quotient 6 as the next digit in the result. 
Result so far: 21816.0
Subtracting 5196 from 5668 leaves us with 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Step 9:
The number 866 fits into 4720 5 times, leaving a remainder of 390.
The next digit of our result is 5. 
Result so far: 21816.5
The remainder is 390 after subtracting 4330 from 4720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Moving on to step 10:
The number 866 fits into 3900 4 times, leaving a remainder of 436.
The number 4 becomes the next digit in our result. 
Result so far: 21816.54
Subtracting 3464 from 3900 leaves us with 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Step 11:
If we divide 4360 by 866, we get 5 and a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 21816.545
If we subtract 4330 from 4360, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
300 divided by 866 is 0 with a remainder of 300.
The next digit of our result is 0. 
Result so far: 21816.545
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 13:
866 goes into 3000 3 times with a remainder of 402.
Use 3 as the next digit of our solution. 
Result so far: 21816.54503
Subtract 2598 from 3000 to get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Going ahead to step 14:
866 can be fit into 4020 4 times, resulting in a remainder of 556.
Write down 4 as next digit of the result. 
Result so far: 21816.545034
Deduct 3464 from 4020 and we're left with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Step 15:
866 can be fit into 5560 6 times, resulting in a remainder of 364.
The number 6 becomes the next digit in our result. 
Result so far: 21816.5450346
Deduct 5196 from 5560 and we're left with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Let's proceed to step 16:
866 can be fit into 3640 4 times, resulting in a remainder of 176.
The number 4 becomes the next digit in our result. 
Result so far: 21816.54503464
If we subtract 3464 from 3640, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

In conclusion, the division gives 21816.54503464 with a balance of 1.76e-07.