We're dividing 77438453 by 739 
The aim is to understand the frequency of 739 in 77438453.

Advancing to step 1:
When dividing 7 by 739, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 739

Moving on to step 2:
77 divided by 739 is 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Append the next digit (4) from the dividend to 77 and continue with: 774 / 739

Let's proceed to step 3:
If we divide 774 by 739, we get 1 and a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 35 after subtracting 739 from 774.
Bring next digit (3) of the dividend behind the 35 and repeat the process: 353 / 739

Going ahead to step 4:
739 can be fit into 353 0 times, resulting in a remainder of 353.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 353 after subtracting 0 from 353.
Grab the next digit (8) from the dividend, add it to 353, then carry on: 3538 / 739

Advancing to step 5:
The number 739 fits into 3538 4 times, leaving a remainder of 582.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
The remainder is 582 after subtracting 2956 from 3538.
Fetch the next digit (4) from the dividend, attach it to 582 and continue: 5824 / 739

Let's proceed to step 6:
The number 739 fits into 5824 7 times, leaving a remainder of 651.
The number 7 becomes the next digit in our result. 
Result so far: 1047.0
If we take 5173 away from 5824, we end up with 651.
Bring next digit (5) of the dividend behind the 651 and repeat the process: 6515 / 739

On to step 7:
When dividing 6515 by 739, we get 8 with a remainder of 603.
The next digit of our result is 8. 
Result so far: 10478.0
If we subtract 5912 from 6515, we get 603.
Include the next digit (3) from the dividend after 603, then repeat: 6033 / 739

Moving on to step 8:
739 goes into 6033 8 times with a remainder of 121.
The next digit of our result is 8. 
Result so far: 104788.0
If we take 5912 away from 6033, we end up with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Let's proceed to step 9:
739 can be fit into 1210 1 times, resulting in a remainder of 471.
Record the quotient 1 as the next digit in the result. 
Result so far: 104788.1
If we take 739 away from 1210, we end up with 471.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

On to step 10:
When dividing 4710 by 739, we get 6 with a remainder of 276.
Use 6 as the next digit of our solution. 
Result so far: 104788.16
Deduct 4434 from 4710 and we're left with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

On to step 11:
2760 divided by 739 is 3 with a remainder of 543.
Put 3 as the next digit of the answer. 
Result so far: 104788.163
The remainder is 543 after subtracting 2217 from 2760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

Going ahead to step 12:
5430 divided by 739 is 7 with a remainder of 257.
The number 7 becomes the next digit in our result. 
Result so far: 104788.1637
Deduct 5173 from 5430 and we're left with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Moving on to step 13:
2570 divided by 739 is 3 with a remainder of 353.
The next digit of our result is 3. 
Result so far: 104788.16373
If we subtract 2217 from 2570, we get 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Step 14:
If we divide 3530 by 739, we get 4 and a remainder of 574.
The next digit of our result is 4. 
Result so far: 104788.163734
Deduct 2956 from 3530 and we're left with 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

On to step 15:
5740 divided by 739 is 7 with a remainder of 567.
The number 7 becomes the next digit in our result. 
Result so far: 104788.1637347
Subtract 5173 from 5740 to get 567.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5670, and continue the process.

Advancing to step 16:
739 can be fit into 5670 7 times, resulting in a remainder of 497.
Write down 7 as next digit of the result. 
Result so far: 104788.16373477
Subtracting 5173 from 5670 leaves us with 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

The final outcome is 104788.16373477, with a leftover of 4.97e-07.