16624237 ÷ 638 
The aim is to understand the frequency of 638 in 16624237.

Going ahead to step 1:
When dividing 1 by 638, we get 0 with 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 (6) from the dividend, add it to 1, then carry on: 16 / 638

Let's proceed to step 2:
The number 638 fits into 16 0 times, leaving a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 638

Let's proceed to step 3:
The number 638 fits into 166 0 times, leaving a remainder of 166.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 166 and we're left with 166.
Fetch the next digit (2) from the dividend, attach it to 166 and continue: 1662 / 638

Let's proceed to step 4:
If we divide 1662 by 638, we get 2 and a remainder of 386.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 1276 from 1662, we get 386.
Append the next digit (4) from the dividend to 386 and continue with: 3864 / 638

Going ahead to step 5:
The number 638 fits into 3864 6 times, leaving a remainder of 36.
The next digit of our result is 6. 
Result so far: 26.0
Subtract 3828 from 3864 to get 36.
Bring next digit (2) of the dividend behind the 36 and repeat the process: 362 / 638

On to step 6:
638 goes into 362 0 times with a remainder of 362.
Put 0 as the next digit of the answer. 
Result so far: 260.0
If we subtract 0 from 362, we get 362.
Bring next digit (3) of the dividend behind the 362 and repeat the process: 3623 / 638

On to step 7:
If we divide 3623 by 638, we get 5 and a remainder of 433.
The number 5 becomes the next digit in our result. 
Result so far: 2605.0
The remainder is 433 after subtracting 3190 from 3623.
Include the next digit (7) from the dividend after 433, then repeat: 4337 / 638

Going ahead to step 8:
If we divide 4337 by 638, we get 6 and a remainder of 509.
Put 6 as the next digit of the answer. 
Result so far: 26056.0
Subtract 3828 from 4337 to get 509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5090, and continue the process.

Step 9:
When dividing 5090 by 638, we get 7 with a remainder of 624.
The number 7 becomes the next digit in our result. 
Result so far: 26056.7
Subtract 4466 from 5090 to get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Step 10:
When dividing 6240 by 638, we get 9 with a remainder of 498.
The number 9 becomes the next digit in our result. 
Result so far: 26056.79
Deduct 5742 from 6240 and we're left with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

On to step 11:
4980 divided by 638 is 7 with a remainder of 514.
Put 7 as the next digit of the answer. 
Result so far: 26056.797
Subtracting 4466 from 4980 leaves us with 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

On to step 12:
638 goes into 5140 8 times with a remainder of 36.
The next digit of our result is 8. 
Result so far: 26056.7978
If we subtract 5104 from 5140, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 13:
360 divided by 638 is 0 with a remainder of 360.
Record the quotient 0 as the next digit in the result. 
Result so far: 26056.7978
If we subtract 0 from 360, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 14:
When dividing 3600 by 638, we get 5 with a remainder of 410.
Use 5 as the next digit of our solution. 
Result so far: 26056.797805
Deduct 3190 from 3600 and we're left with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

On to step 15:
638 goes into 4100 6 times with a remainder of 272.
Put 6 as the next digit of the answer. 
Result so far: 26056.7978056
Subtracting 3828 from 4100 leaves us with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

On to step 16:
If we divide 2720 by 638, we get 4 and a remainder of 168.
Put 4 as the next digit of the answer. 
Result so far: 26056.79780564
If we subtract 2552 from 2720, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

The final outcome is 26056.79780564, with a leftover of 1.68e-07.