We're dividing 20381643 by 658 
The aim is to understand the frequency of 658 in 20381643.

Advancing to step 1:
The number 658 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 658

Moving on to step 2:
658 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Append the next digit (3) from the dividend to 20 and continue with: 203 / 658

Advancing to step 3:
203 divided by 658 is 0 with a remainder of 203.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 203 leaves us with 203.
Bring next digit (8) of the dividend behind the 203 and repeat the process: 2038 / 658

On to step 4:
When dividing 2038 by 658, we get 3 with a remainder of 64.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 1974 from 2038 leaves us with 64.
Append the next digit (1) from the dividend to 64 and continue with: 641 / 658

Let's proceed to step 5:
If we divide 641 by 658, we get 0 and a remainder of 641.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
Subtract 0 from 641 to get 641.
Fetch the next digit (6) from the dividend, attach it to 641 and continue: 6416 / 658

Advancing to step 6:
658 can be fit into 6416 9 times, resulting in a remainder of 494.
Put 9 as the next digit of the answer. 
Result so far: 309.0
Subtracting 5922 from 6416 leaves us with 494.
Bring next digit (4) of the dividend behind the 494 and repeat the process: 4944 / 658

On to step 7:
If we divide 4944 by 658, we get 7 and a remainder of 338.
Put 7 as the next digit of the answer. 
Result so far: 3097.0
Subtracting 4606 from 4944 leaves us with 338.
Bring next digit (3) of the dividend behind the 338 and repeat the process: 3383 / 658

Let's proceed to step 8:
658 goes into 3383 5 times with a remainder of 93.
Record the quotient 5 as the next digit in the result. 
Result so far: 30975.0
Deduct 3290 from 3383 and we're left with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Going ahead to step 9:
658 can be fit into 930 1 times, resulting in a remainder of 272.
Put 1 as the next digit of the answer. 
Result so far: 30975.1
If we subtract 658 from 930, we get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 10:
When dividing 2720 by 658, we get 4 with a remainder of 88.
Record the quotient 4 as the next digit in the result. 
Result so far: 30975.14
If we subtract 2632 from 2720, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Moving on to step 11:
658 goes into 880 1 times with a remainder of 222.
The number 1 becomes the next digit in our result. 
Result so far: 30975.141
If we take 658 away from 880, we end up with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

On to step 12:
2220 divided by 658 is 3 with a remainder of 246.
Use 3 as the next digit of our solution. 
Result so far: 30975.1413
Subtract 1974 from 2220 to get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Advancing to step 13:
When dividing 2460 by 658, we get 3 with a remainder of 486.
Put 3 as the next digit of the answer. 
Result so far: 30975.14133
The remainder is 486 after subtracting 1974 from 2460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

In conclusion, the division gives 30975.14133 with a balance of 0.000486.