We're dividing 21637457 by 790 
The aim is to understand the frequency of 790 in 21637457.

Going ahead to step 1:
When dividing 2 by 790, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 790

Let's proceed to step 2:
The number 790 fits into 21 0 times, leaving a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Grab the next digit (6) from the dividend, add it to 21, then carry on: 216 / 790

Step 3:
790 goes into 216 0 times with a remainder of 216.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 216, we end up with 216.
Fetch the next digit (3) from the dividend, attach it to 216 and continue: 2163 / 790

Advancing to step 4:
The number 790 fits into 2163 2 times, leaving a remainder of 583.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 1580 from 2163 and we're left with 583.
Include the next digit (7) from the dividend after 583, then repeat: 5837 / 790

Step 5:
When dividing 5837 by 790, we get 7 with a remainder of 307.
Use 7 as the next digit of our solution. 
Result so far: 27.0
If we subtract 5530 from 5837, we get 307.
Append the next digit (4) from the dividend to 307 and continue with: 3074 / 790

Moving on to step 6:
If we divide 3074 by 790, we get 3 and a remainder of 704.
Write down 3 as next digit of the result. 
Result so far: 273.0
Subtract 2370 from 3074 to get 704.
Grab the next digit (5) from the dividend, add it to 704, then carry on: 7045 / 790

Let's proceed to step 7:
790 goes into 7045 8 times with a remainder of 725.
Record the quotient 8 as the next digit in the result. 
Result so far: 2738.0
If we take 6320 away from 7045, we end up with 725.
Grab the next digit (7) from the dividend, add it to 725, then carry on: 7257 / 790

Advancing to step 8:
When dividing 7257 by 790, we get 9 with a remainder of 147.
The next digit of our result is 9. 
Result so far: 27389.0
Deduct 7110 from 7257 and we're left with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Moving on to step 9:
The number 790 fits into 1470 1 times, leaving a remainder of 680.
The number 1 becomes the next digit in our result. 
Result so far: 27389.1
If we subtract 790 from 1470, we get 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

On to step 10:
790 goes into 6800 8 times with a remainder of 480.
Record the quotient 8 as the next digit in the result. 
Result so far: 27389.18
Subtracting 6320 from 6800 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 11:
790 can be fit into 4800 6 times, resulting in a remainder of 60.
Put 6 as the next digit of the answer. 
Result so far: 27389.186
If we take 4740 away from 4800, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 12:
790 goes into 600 0 times with a remainder of 600.
The number 0 becomes the next digit in our result. 
Result so far: 27389.186
Deduct 0 from 600 and we're left with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 13:
If we divide 6000 by 790, we get 7 and a remainder of 470.
The next digit of our result is 7. 
Result so far: 27389.18607
If we subtract 5530 from 6000, we get 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Going ahead to step 14:
If we divide 4700 by 790, we get 5 and a remainder of 750.
Put 5 as the next digit of the answer. 
Result so far: 27389.186075
Deduct 3950 from 4700 and we're left with 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Going ahead to step 15:
7500 divided by 790 is 9 with a remainder of 390.
The next digit of our result is 9. 
Result so far: 27389.1860759
If we subtract 7110 from 7500, we get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Step 16:
3900 divided by 790 is 4 with a remainder of 740.
Record the quotient 4 as the next digit in the result. 
Result so far: 27389.18607594
Subtracting 3160 from 3900 leaves us with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

After the division, we end up with 27389.18607594 and a remainder of 7.4e-07.