755551 divided by 77 
The aim is to understand the frequency of 77 in 755551.

Advancing to step 1:
The number 77 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 77

On to step 2:
When dividing 75 by 77, we get 0 with a remainder of 75.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Include the next digit (5) from the dividend after 75, then repeat: 755 / 77

Step 3:
If we divide 755 by 77, we get 9 and a remainder of 62.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 693 from 755 and we're left with 62.
Take the next digit (5) from the dividend and append it to 62, then repeat: 625 / 77

Advancing to step 4:
If we divide 625 by 77, we get 8 and a remainder of 9.
Record the quotient 8 as the next digit in the result. 
Result so far: 98.0
Subtract 616 from 625 to get 9.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 77

Let's proceed to step 5:
If we divide 95 by 77, we get 1 and a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 981.0
The remainder is 18 after subtracting 77 from 95.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 77

Moving on to step 6:
When dividing 181 by 77, we get 2 with a remainder of 27.
The number 2 becomes the next digit in our result. 
Result so far: 9812.0
If we take 154 away from 181, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 7:
The number 77 fits into 270 3 times, leaving a remainder of 39.
The next digit of our result is 3. 
Result so far: 9812.3
If we subtract 231 from 270, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 8:
When dividing 390 by 77, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 9812.35
If we subtract 385 from 390, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 9:
The number 77 fits into 50 0 times, leaving a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 9812.35
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 10:
77 can be fit into 500 6 times, resulting in a remainder of 38.
Put 6 as the next digit of the answer. 
Result so far: 9812.3506
Deduct 462 from 500 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 11:
When dividing 380 by 77, we get 4 with a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 9812.35064
Subtracting 308 from 380 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 12:
77 can be fit into 720 9 times, resulting in a remainder of 27.
Use 9 as the next digit of our solution. 
Result so far: 9812.350649
Deduct 693 from 720 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 13:
77 goes into 270 3 times with a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 9812.3506493
Subtracting 231 from 270 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 14:
If we divide 390 by 77, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 9812.35064935
Subtract 385 from 390 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 9812.35064935 with a remaining 5e-09.