We look at the division of 550125 by 77 
The aim is to understand the frequency of 77 in 550125.

Advancing to step 1:
If we divide 5 by 77, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 77

Moving on to step 2:
77 goes into 55 0 times with a remainder of 55.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Include the next digit (0) from the dividend after 55, then repeat: 550 / 77

Let's proceed to step 3:
When dividing 550 by 77, we get 7 with a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Deduct 539 from 550 and we're left with 11.
Append the next digit (1) from the dividend to 11 and continue with: 111 / 77

Going ahead to step 4:
77 goes into 111 1 times with a remainder of 34.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
If we subtract 77 from 111, we get 34.
Grab the next digit (2) from the dividend, add it to 34, then carry on: 342 / 77

Moving on to step 5:
77 can be fit into 342 4 times, resulting in a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 714.0
Deduct 308 from 342 and we're left with 34.
Take the next digit (5) from the dividend and append it to 34, then repeat: 345 / 77

Going ahead to step 6:
If we divide 345 by 77, we get 4 and a remainder of 37.
Put 4 as the next digit of the answer. 
Result so far: 7144.0
Subtracting 308 from 345 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 7:
The number 77 fits into 370 4 times, leaving a remainder of 62.
Use 4 as the next digit of our solution. 
Result so far: 7144.4
Deduct 308 from 370 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 8:
77 can be fit into 620 8 times, resulting in a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 7144.48
Subtracting 616 from 620 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
When dividing 40 by 77, we get 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 7144.48
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
400 divided by 77 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 7144.4805
If we take 385 away from 400, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 11:
If we divide 150 by 77, we get 1 and a remainder of 73.
Write down 1 as next digit of the result. 
Result so far: 7144.48051
Subtracting 77 from 150 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 12:
77 can be fit into 730 9 times, resulting in a remainder of 37.
The next digit of our result is 9. 
Result so far: 7144.480519
Deduct 693 from 730 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 13:
When dividing 370 by 77, we get 4 with a remainder of 62.
Write down 4 as next digit of the result. 
Result so far: 7144.4805194
The remainder is 62 after subtracting 308 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 14:
77 can be fit into 620 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 7144.48051948
The remainder is 4 after subtracting 616 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 7144.48051948, and the remainder is 4e-09.