54262839 ÷ 629 
The aim is to understand the frequency of 629 in 54262839.

Step 1:
The number 629 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 629

Step 2:
The number 629 fits into 54 0 times, leaving a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Include the next digit (2) from the dividend after 54, then repeat: 542 / 629

Going ahead to step 3:
The number 629 fits into 542 0 times, leaving a remainder of 542.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 542 to get 542.
Append the next digit (6) from the dividend to 542 and continue with: 5426 / 629

Let's proceed to step 4:
629 goes into 5426 8 times with a remainder of 394.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 5032 from 5426 leaves us with 394.
Bring next digit (2) of the dividend behind the 394 and repeat the process: 3942 / 629

Moving on to step 5:
629 can be fit into 3942 6 times, resulting in a remainder of 168.
The number 6 becomes the next digit in our result. 
Result so far: 86.0
Deduct 3774 from 3942 and we're left with 168.
Grab the next digit (8) from the dividend, add it to 168, then carry on: 1688 / 629

Going ahead to step 6:
629 can be fit into 1688 2 times, resulting in a remainder of 430.
The next digit of our result is 2. 
Result so far: 862.0
If we subtract 1258 from 1688, we get 430.
Include the next digit (3) from the dividend after 430, then repeat: 4303 / 629

On to step 7:
629 goes into 4303 6 times with a remainder of 529.
Use 6 as the next digit of our solution. 
Result so far: 8626.0
Subtract 3774 from 4303 to get 529.
Bring next digit (9) of the dividend behind the 529 and repeat the process: 5299 / 629

Advancing to step 8:
The number 629 fits into 5299 8 times, leaving a remainder of 267.
Use 8 as the next digit of our solution. 
Result so far: 86268.0
If we take 5032 away from 5299, we end up with 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Advancing to step 9:
629 goes into 2670 4 times with a remainder of 154.
The next digit of our result is 4. 
Result so far: 86268.4
If we take 2516 away from 2670, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Advancing to step 10:
If we divide 1540 by 629, we get 2 and a remainder of 282.
Write down 2 as next digit of the result. 
Result so far: 86268.42
If we take 1258 away from 1540, we end up with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Step 11:
2820 divided by 629 is 4 with a remainder of 304.
Use 4 as the next digit of our solution. 
Result so far: 86268.424
The remainder is 304 after subtracting 2516 from 2820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 12:
When dividing 3040 by 629, we get 4 with a remainder of 524.
Record the quotient 4 as the next digit in the result. 
Result so far: 86268.4244
If we take 2516 away from 3040, we end up with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

The final outcome is 86268.4244, with a leftover of 0.00524.