603447 ÷ 77 
The aim is to understand the frequency of 77 in 603447.

Let's proceed to step 1:
When dividing 6 by 77, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 77

Advancing to step 2:
77 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 60 to get 60.
Grab the next digit (3) from the dividend, add it to 60, then carry on: 603 / 77

Moving on to step 3:
77 can be fit into 603 7 times, resulting in a remainder of 64.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 539 from 603 leaves us with 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 77

Let's proceed to step 4:
The number 77 fits into 644 8 times, leaving a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtracting 616 from 644 leaves us with 28.
Append the next digit (4) from the dividend to 28 and continue with: 284 / 77

On to step 5:
If we divide 284 by 77, we get 3 and a remainder of 53.
Use 3 as the next digit of our solution. 
Result so far: 783.0
Deduct 231 from 284 and we're left with 53.
Take the next digit (7) from the dividend and append it to 53, then repeat: 537 / 77

Step 6:
If we divide 537 by 77, we get 6 and a remainder of 75.
The number 6 becomes the next digit in our result. 
Result so far: 7836.0
If we subtract 462 from 537, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 7:
77 can be fit into 750 9 times, resulting in a remainder of 57.
Write down 9 as next digit of the result. 
Result so far: 7836.9
Subtracting 693 from 750 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 8:
If we divide 570 by 77, we get 7 and a remainder of 31.
Put 7 as the next digit of the answer. 
Result so far: 7836.97
Deduct 539 from 570 and we're left 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 9:
77 can be fit into 310 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 7836.974
Deduct 308 from 310 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 10:
When dividing 20 by 77, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 7836.974
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
77 can be fit into 200 2 times, resulting in a remainder of 46.
Use 2 as the next digit of our solution. 
Result so far: 7836.97402
Subtracting 154 from 200 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 12:
The number 77 fits into 460 5 times, leaving a remainder of 75.
The next digit of our result is 5. 
Result so far: 7836.974025
Subtracting 385 from 460 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 13:
If we divide 750 by 77, we get 9 and a remainder of 57.
Use 9 as the next digit of our solution. 
Result so far: 7836.9740259
The remainder is 57 after subtracting 693 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 14:
When dividing 570 by 77, we get 7 with a remainder of 31.
Use 7 as the next digit of our solution. 
Result so far: 7836.97402597
If we subtract 539 from 570, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

In conclusion, the division gives 7836.97402597 with a balance of 3.1e-08.