15437817 ÷ 647 
The aim is to understand the frequency of 647 in 15437817.

Advancing to step 1:
If we divide 1 by 647, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 647

Step 2:
15 divided by 647 is 0 with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Fetch the next digit (4) from the dividend, attach it to 15 and continue: 154 / 647

Going ahead to step 3:
The number 647 fits into 154 0 times, leaving a remainder of 154.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 154 to get 154.
Include the next digit (3) from the dividend after 154, then repeat: 1543 / 647

Advancing to step 4:
The number 647 fits into 1543 2 times, leaving a remainder of 249.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 1294 from 1543, we get 249.
Bring next digit (7) of the dividend behind the 249 and repeat the process: 2497 / 647

Let's proceed to step 5:
647 goes into 2497 3 times with a remainder of 556.
Use 3 as the next digit of our solution. 
Result so far: 23.0
The remainder is 556 after subtracting 1941 from 2497.
Take the next digit (8) from the dividend and append it to 556, then repeat: 5568 / 647

Moving on to step 6:
When dividing 5568 by 647, we get 8 with a remainder of 392.
Record the quotient 8 as the next digit in the result. 
Result so far: 238.0
Deduct 5176 from 5568 and we're left with 392.
Append the next digit (1) from the dividend to 392 and continue with: 3921 / 647

On to step 7:
The number 647 fits into 3921 6 times, leaving a remainder of 39.
The number 6 becomes the next digit in our result. 
Result so far: 2386.0
If we take 3882 away from 3921, we end up with 39.
Fetch the next digit (7) from the dividend, attach it to 39 and continue: 397 / 647

On to step 8:
397 divided by 647 is 0 with a remainder of 397.
The next digit of our result is 0. 
Result so far: 23860.0
Subtracting 0 from 397 leaves us with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Moving on to step 9:
647 goes into 3970 6 times with a remainder of 88.
The next digit of our result is 6. 
Result so far: 23860.6
The remainder is 88 after subtracting 3882 from 3970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 10:
If we divide 880 by 647, we get 1 and a remainder of 233.
The number 1 becomes the next digit in our result. 
Result so far: 23860.61
The remainder is 233 after subtracting 647 from 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Let's proceed to step 11:
The number 647 fits into 2330 3 times, leaving a remainder of 389.
Record the quotient 3 as the next digit in the result. 
Result so far: 23860.613
Subtract 1941 from 2330 to get 389.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

Step 12:
3890 divided by 647 is 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 23860.6136
If we subtract 3882 from 3890, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
When dividing 80 by 647, we get 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 23860.6136
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 14:
When dividing 800 by 647, we get 1 with a remainder of 153.
Write down 1 as next digit of the result. 
Result so far: 23860.613601
Deduct 647 from 800 and we're left with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

On to step 15:
647 goes into 1530 2 times with a remainder of 236.
The number 2 becomes the next digit in our result. 
Result so far: 23860.6136012
Deduct 1294 from 1530 and we're left with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Let's proceed to step 16:
2360 divided by 647 is 3 with a remainder of 419.
The next digit of our result is 3. 
Result so far: 23860.61360123
The remainder is 419 after subtracting 1941 from 2360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Our division results in 23860.61360123 with a remaining 4.19e-07.