Let's divide 22429782 by 643
The aim is to understand the frequency of 643 in 22429782.

Let's proceed to step 1:
When dividing 2 by 643, we get 0 with 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 (2) from the dividend after 2, then repeat: 22 / 643

Moving on to step 2:
643 goes into 22 0 times with a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 22, we end up with 22.
Grab the next digit (4) from the dividend, add it to 22, then carry on: 224 / 643

Step 3:
The number 643 fits into 224 0 times, leaving a remainder of 224.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 224 after subtracting 0 from 224.
Fetch the next digit (2) from the dividend, attach it to 224 and continue: 2242 / 643

On to step 4:
643 can be fit into 2242 3 times, resulting in a remainder of 313.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 1929 from 2242, we get 313.
Include the next digit (9) from the dividend after 313, then repeat: 3139 / 643

On to step 5:
If we divide 3139 by 643, we get 4 and a remainder of 567.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we take 2572 away from 3139, we end up with 567.
Append the next digit (7) from the dividend to 567 and continue with: 5677 / 643

Advancing to step 6:
5677 divided by 643 is 8 with a remainder of 533.
Put 8 as the next digit of the answer. 
Result so far: 348.0
Subtracting 5144 from 5677 leaves us with 533.
Take the next digit (8) from the dividend and append it to 533, then repeat: 5338 / 643

Let's proceed to step 7:
If we divide 5338 by 643, we get 8 and a remainder of 194.
Write down 8 as next digit of the result. 
Result so far: 3488.0
If we subtract 5144 from 5338, we get 194.
Fetch the next digit (2) from the dividend, attach it to 194 and continue: 1942 / 643

Going ahead to step 8:
1942 divided by 643 is 3 with a remainder of 13.
The next digit of our result is 3. 
Result so far: 34883.0
Subtracting 1929 from 1942 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 9:
When dividing 130 by 643, we get 0 with a remainder of 130.
Write down 0 as next digit of the result. 
Result so far: 34883.0
Subtracting 0 from 130 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

On to step 10:
The number 643 fits into 1300 2 times, leaving a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 34883.02
If we take 1286 away from 1300, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 11:
643 can be fit into 140 0 times, resulting in a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 34883.02
If we subtract 0 from 140, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 12:
The number 643 fits into 1400 2 times, leaving a remainder of 114.
Put 2 as the next digit of the answer. 
Result so far: 34883.0202
If we subtract 1286 from 1400, we get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Let's proceed to step 13:
The number 643 fits into 1140 1 times, leaving a remainder of 497.
Put 1 as the next digit of the answer. 
Result so far: 34883.02021
Subtract 643 from 1140 to get 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

Advancing to step 14:
643 goes into 4970 7 times with a remainder of 469.
Use 7 as the next digit of our solution. 
Result so far: 34883.020217
If we take 4501 away from 4970, we end up with 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Step 15:
643 goes into 4690 7 times with a remainder of 189.
Use 7 as the next digit of our solution. 
Result so far: 34883.0202177
Deduct 4501 from 4690 and we're left with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

After the division, we end up with 34883.0202177 and a remainder of 1.89e-06.