23980185 ÷ 851 
The aim is to understand the frequency of 851 in 23980185.

Advancing to step 1:
If we divide 2 by 851, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 851

Let's proceed to step 2:
The number 851 fits into 23 0 times, leaving a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 23 leaves us with 23.
Fetch the next digit (9) from the dividend, attach it to 23 and continue: 239 / 851

Let's proceed to step 3:
851 goes into 239 0 times with a remainder of 239.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 239 and we're left with 239.
Append the next digit (8) from the dividend to 239 and continue with: 2398 / 851

Let's proceed to step 4:
851 can be fit into 2398 2 times, resulting in a remainder of 696.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 1702 from 2398 leaves us with 696.
Append the next digit (0) from the dividend to 696 and continue with: 6960 / 851

Going ahead to step 5:
851 can be fit into 6960 8 times, resulting in a remainder of 152.
Write down 8 as next digit of the result. 
Result so far: 28.0
If we subtract 6808 from 6960, we get 152.
Bring next digit (1) of the dividend behind the 152 and repeat the process: 1521 / 851

Going ahead to step 6:
851 goes into 1521 1 times with a remainder of 670.
The number 1 becomes the next digit in our result. 
Result so far: 281.0
Subtracting 851 from 1521 leaves us with 670.
Bring next digit (8) of the dividend behind the 670 and repeat the process: 6708 / 851

Step 7:
When dividing 6708 by 851, we get 7 with a remainder of 751.
Put 7 as the next digit of the answer. 
Result so far: 2817.0
Deduct 5957 from 6708 and we're left with 751.
Include the next digit (5) from the dividend after 751, then repeat: 7515 / 851

Going ahead to step 8:
If we divide 7515 by 851, we get 8 and a remainder of 707.
Put 8 as the next digit of the answer. 
Result so far: 28178.0
If we take 6808 away from 7515, we end up with 707.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7070, and continue the process.

Let's proceed to step 9:
851 goes into 7070 8 times with a remainder of 262.
Put 8 as the next digit of the answer. 
Result so far: 28178.8
Subtracting 6808 from 7070 leaves us with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Advancing to step 10:
The number 851 fits into 2620 3 times, leaving a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 28178.83
Deduct 2553 from 2620 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Let's proceed to step 11:
The number 851 fits into 670 0 times, leaving a remainder of 670.
Use 0 as the next digit of our solution. 
Result so far: 28178.83
If we take 0 away from 670, we end up with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

On to step 12:
851 goes into 6700 7 times with a remainder of 743.
Put 7 as the next digit of the answer. 
Result so far: 28178.8307
Subtract 5957 from 6700 to get 743.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7430, and continue the process.

Advancing to step 13:
If we divide 7430 by 851, we get 8 and a remainder of 622.
Put 8 as the next digit of the answer. 
Result so far: 28178.83078
If we take 6808 away from 7430, we end up with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Step 14:
6220 divided by 851 is 7 with a remainder of 263.
Write down 7 as next digit of the result. 
Result so far: 28178.830787
If we subtract 5957 from 6220, we get 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Going ahead to step 15:
The number 851 fits into 2630 3 times, leaving a remainder of 77.
The number 3 becomes the next digit in our result. 
Result so far: 28178.8307873
The remainder is 77 after subtracting 2553 from 2630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 16:
When dividing 770 by 851, we get 0 with a remainder of 770.
The number 0 becomes the next digit in our result. 
Result so far: 28178.8307873
Deduct 0 from 770 and we're left with 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7700, and continue the process.

Our division results in 28178.8307873 with a remaining 7.7e-07.