20644670 ÷ 876 
The aim is to understand the frequency of 876 in 20644670.

Moving on to step 1:
The number 876 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 876

Going ahead to step 2:
20 divided by 876 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Take the next digit (6) from the dividend and append it to 20, then repeat: 206 / 876

Moving on to step 3:
206 divided by 876 is 0 with a remainder of 206.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 206 to get 206.
Take the next digit (4) from the dividend and append it to 206, then repeat: 2064 / 876

Going ahead to step 4:
876 can be fit into 2064 2 times, resulting in a remainder of 312.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1752 from 2064 and we're left with 312.
Append the next digit (4) from the dividend to 312 and continue with: 3124 / 876

Let's proceed to step 5:
876 goes into 3124 3 times with a remainder of 496.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
Subtract 2628 from 3124 to get 496.
Include the next digit (6) from the dividend after 496, then repeat: 4966 / 876

Step 6:
876 goes into 4966 5 times with a remainder of 586.
Record the quotient 5 as the next digit in the result. 
Result so far: 235.0
If we take 4380 away from 4966, we end up with 586.
Include the next digit (7) from the dividend after 586, then repeat: 5867 / 876

Let's proceed to step 7:
If we divide 5867 by 876, we get 6 and a remainder of 611.
The number 6 becomes the next digit in our result. 
Result so far: 2356.0
If we take 5256 away from 5867, we end up with 611.
Bring next digit (0) of the dividend behind the 611 and repeat the process: 6110 / 876

Moving on to step 8:
The number 876 fits into 6110 6 times, leaving a remainder of 854.
The next digit of our result is 6. 
Result so far: 23566.0
If we subtract 5256 from 6110, we get 854.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8540, and continue the process.

Moving on to step 9:
When dividing 8540 by 876, we get 9 with a remainder of 656.
Put 9 as the next digit of the answer. 
Result so far: 23566.9
Subtract 7884 from 8540 to get 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Advancing to step 10:
When dividing 6560 by 876, we get 7 with a remainder of 428.
The number 7 becomes the next digit in our result. 
Result so far: 23566.97
The remainder is 428 after subtracting 6132 from 6560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

On to step 11:
If we divide 4280 by 876, we get 4 and a remainder of 776.
The next digit of our result is 4. 
Result so far: 23566.974
The remainder is 776 after subtracting 3504 from 4280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Moving on to step 12:
876 goes into 7760 8 times with a remainder of 752.
Put 8 as the next digit of the answer. 
Result so far: 23566.9748
Subtracting 7008 from 7760 leaves us with 752.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

On to step 13:
If we divide 7520 by 876, we get 8 and a remainder of 512.
Record the quotient 8 as the next digit in the result. 
Result so far: 23566.97488
If we subtract 7008 from 7520, we get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

The final result is 23566.97488 with a remainder of 0.000512.