553357 divided by 77 
The aim is to understand the frequency of 77 in 553357.

Going ahead to step 1:
77 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 77

Let's proceed to step 2:
77 goes into 55 0 times with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 55, we get 55.
Include the next digit (3) from the dividend after 55, then repeat: 553 / 77

Advancing to step 3:
The number 77 fits into 553 7 times, leaving a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 539 from 553 to get 14.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 77

Advancing to step 4:
When dividing 143 by 77, we get 1 with a remainder of 66.
Use 1 as the next digit of our solution. 
Result so far: 71.0
Deduct 77 from 143 and we're left with 66.
Grab the next digit (5) from the dividend, add it to 66, then carry on: 665 / 77

Advancing to step 5:
When dividing 665 by 77, we get 8 with a remainder of 49.
Record the quotient 8 as the next digit in the result. 
Result so far: 718.0
Subtracting 616 from 665 leaves us with 49.
Include the next digit (7) from the dividend after 49, then repeat: 497 / 77

On to step 6:
When dividing 497 by 77, we get 6 with a remainder of 35.
The next digit of our result is 6. 
Result so far: 7186.0
Subtract 462 from 497 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 7:
When dividing 350 by 77, we get 4 with a remainder of 42.
The next digit of our result is 4. 
Result so far: 7186.4
If we subtract 308 from 350, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 8:
420 divided by 77 is 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 7186.45
The remainder is 35 after subtracting 385 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 9:
If we divide 350 by 77, we get 4 and a remainder of 42.
The number 4 becomes the next digit in our result. 
Result so far: 7186.454
Subtracting 308 from 350 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 10:
77 goes into 420 5 times with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 7186.4545
Deduct 385 from 420 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 11:
The number 77 fits into 350 4 times, leaving a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 7186.45454
Subtract 308 from 350 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 12:
If we divide 420 by 77, we get 5 and a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 7186.454545
Subtract 385 from 420 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 13:
When dividing 350 by 77, we get 4 with a remainder of 42.
The next digit of our result is 4. 
Result so far: 7186.4545454
Subtracting 308 from 350 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 14:
If we divide 420 by 77, we get 5 and a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 7186.45454545
Subtract 385 from 420 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final result is 7186.45454545 with a remainder of 3.5e-08.