7292797 divided by 643 
The aim is to understand the frequency of 643 in 7292797.

Moving on to step 1:
7 divided by 643 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 643

On to step 2:
72 divided by 643 is 0 with a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Take the next digit (9) from the dividend and append it to 72, then repeat: 729 / 643

Going ahead to step 3:
643 goes into 729 1 times with a remainder of 86.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 643 from 729 to get 86.
Append the next digit (2) from the dividend to 86 and continue with: 862 / 643

Moving on to step 4:
643 goes into 862 1 times with a remainder of 219.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 643 away from 862, we end up with 219.
Bring next digit (7) of the dividend behind the 219 and repeat the process: 2197 / 643

On to step 5:
643 can be fit into 2197 3 times, resulting in a remainder of 268.
The next digit of our result is 3. 
Result so far: 113.0
Subtract 1929 from 2197 to get 268.
Take the next digit (9) from the dividend and append it to 268, then repeat: 2689 / 643

Advancing to step 6:
2689 divided by 643 is 4 with a remainder of 117.
Write down 4 as next digit of the result. 
Result so far: 1134.0
Subtract 2572 from 2689 to get 117.
Grab the next digit (7) from the dividend, add it to 117, then carry on: 1177 / 643

Advancing to step 7:
643 goes into 1177 1 times with a remainder of 534.
Use 1 as the next digit of our solution. 
Result so far: 11341.0
The remainder is 534 after subtracting 643 from 1177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Let's proceed to step 8:
643 can be fit into 5340 8 times, resulting in a remainder of 196.
Use 8 as the next digit of our solution. 
Result so far: 11341.8
Subtracting 5144 from 5340 leaves us with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Step 9:
643 goes into 1960 3 times with a remainder of 31.
Record the quotient 3 as the next digit in the result. 
Result so far: 11341.83
Subtracting 1929 from 1960 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 10:
643 can be fit into 310 0 times, resulting in a remainder of 310.
Put 0 as the next digit of the answer. 
Result so far: 11341.83
If we take 0 away from 310, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Advancing to step 11:
The number 643 fits into 3100 4 times, leaving a remainder of 528.
Put 4 as the next digit of the answer. 
Result so far: 11341.8304
Subtract 2572 from 3100 to get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Advancing to step 12:
If we divide 5280 by 643, we get 8 and a remainder of 136.
Record the quotient 8 as the next digit in the result. 
Result so far: 11341.83048
Subtracting 5144 from 5280 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 13:
The number 643 fits into 1360 2 times, leaving a remainder of 74.
Use 2 as the next digit of our solution. 
Result so far: 11341.830482
If we take 1286 away from 1360, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 14:
740 divided by 643 is 1 with a remainder of 97.
The number 1 becomes the next digit in our result. 
Result so far: 11341.8304821
Subtract 643 from 740 to get 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Moving on to step 15:
If we divide 970 by 643, we get 1 and a remainder of 327.
The next digit of our result is 1. 
Result so far: 11341.83048211
Deduct 643 from 970 and we're left with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

In conclusion, the division gives 11341.83048211 with a balance of 3.27e-07.