We divide 21892443 by 642
The aim is to understand the frequency of 642 in 21892443.

Moving on to step 1:
642 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 642

Moving on to step 2:
642 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 642

Moving on to step 3:
If we divide 218 by 642, we get 0 and a remainder of 218.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 218, we get 218.
Fetch the next digit (9) from the dividend, attach it to 218 and continue: 2189 / 642

Step 4:
2189 divided by 642 is 3 with a remainder of 263.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 1926 from 2189, we get 263.
Grab the next digit (2) from the dividend, add it to 263, then carry on: 2632 / 642

Advancing to step 5:
The number 642 fits into 2632 4 times, leaving a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 34.0
The remainder is 64 after subtracting 2568 from 2632.
Include the next digit (4) from the dividend after 64, then repeat: 644 / 642

On to step 6:
642 can be fit into 644 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 341.0
If we subtract 642 from 644, we get 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 642

Going ahead to step 7:
The number 642 fits into 24 0 times, leaving a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 3410.0
The remainder is 24 after subtracting 0 from 24.
Fetch the next digit (3) from the dividend, attach it to 24 and continue: 243 / 642

Step 8:
The number 642 fits into 243 0 times, leaving a remainder of 243.
The next digit of our result is 0. 
Result so far: 34100.0
If we subtract 0 from 243, we get 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Let's proceed to step 9:
If we divide 2430 by 642, we get 3 and a remainder of 504.
Put 3 as the next digit of the answer. 
Result so far: 34100.3
If we subtract 1926 from 2430, we get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Let's proceed to step 10:
If we divide 5040 by 642, we get 7 and a remainder of 546.
Write down 7 as next digit of the result. 
Result so far: 34100.37
Subtracting 4494 from 5040 leaves us with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Moving on to step 11:
642 goes into 5460 8 times with a remainder of 324.
Use 8 as the next digit of our solution. 
Result so far: 34100.378
If we take 5136 away from 5460, we end up with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

On to step 12:
642 goes into 3240 5 times with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 34100.3785
Deduct 3210 from 3240 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 13:
642 goes into 300 0 times with a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 34100.3785
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 14:
The number 642 fits into 3000 4 times, leaving a remainder of 432.
The next digit of our result is 4. 
Result so far: 34100.378504
Deduct 2568 from 3000 and we're left with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Advancing to step 15:
When dividing 4320 by 642, we get 6 with a remainder of 468.
Put 6 as the next digit of the answer. 
Result so far: 34100.3785046
If we take 3852 away from 4320, we end up with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Going ahead to step 16:
642 goes into 4680 7 times with a remainder of 186.
Use 7 as the next digit of our solution. 
Result so far: 34100.37850467
If we subtract 4494 from 4680, we get 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

After the division, we end up with 34100.37850467 and a remainder of 1.86e-07.