552629 ÷ 77 
The aim is to understand the frequency of 77 in 552629.

Advancing to step 1:
5 divided by 77 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 77

Advancing to step 2:
55 divided by 77 is 0 with a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 55 after subtracting 0 from 55.
Grab the next digit (2) from the dividend, add it to 55, then carry on: 552 / 77

Let's proceed to step 3:
77 can be fit into 552 7 times, resulting in a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 539 from 552, we get 13.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 77

Going ahead to step 4:
The number 77 fits into 136 1 times, leaving a remainder of 59.
The next digit of our result is 1. 
Result so far: 71.0
Subtracting 77 from 136 leaves us with 59.
Fetch the next digit (2) from the dividend, attach it to 59 and continue: 592 / 77

Let's proceed to step 5:
77 can be fit into 592 7 times, resulting in a remainder of 53.
The next digit of our result is 7. 
Result so far: 717.0
If we subtract 539 from 592, we get 53.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 77

On to step 6:
When dividing 539 by 77, we get 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 7177.0
If we subtract 539 from 539, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
The number 77 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 7177.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
If we divide 0 by 77, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 7177.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 7177.0 and a remainder of 0.0.