We're dividing 455261 by 77 
The aim is to understand the frequency of 77 in 455261.

Advancing to step 1:
77 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 77

Let's proceed to step 2:
If we divide 45 by 77, we get 0 and a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Append the next digit (5) from the dividend to 45 and continue with: 455 / 77

Moving on to step 3:
77 goes into 455 5 times with a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 385 from 455 leaves us with 70.
Take the next digit (2) from the dividend and append it to 70, then repeat: 702 / 77

Let's proceed to step 4:
77 goes into 702 9 times with a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 59.0
The remainder is 9 after subtracting 693 from 702.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 77

Moving on to step 5:
The number 77 fits into 96 1 times, leaving a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 591.0
Subtract 77 from 96 to get 19.
Grab the next digit (1) from the dividend, add it to 19, then carry on: 191 / 77

Advancing to step 6:
191 divided by 77 is 2 with a remainder of 37.
Put 2 as the next digit of the answer. 
Result so far: 5912.0
Deduct 154 from 191 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.

Moving on to step 7:
When dividing 370 by 77, we get 4 with a remainder of 62.
The number 4 becomes the next digit in our result. 
Result so far: 5912.4
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.

Let's proceed to step 8:
77 goes into 620 8 times with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 5912.48
Deduct 616 from 620 and we're left 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.

On to step 9:
77 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 5912.48
If we take 0 away from 40, we end up 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.

Let's proceed to step 10:
The number 77 fits into 400 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 5912.4805
Subtracting 385 from 400 leaves us 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.

Advancing to step 11:
77 can be fit into 150 1 times, resulting in a remainder of 73.
The next digit of our result is 1. 
Result so far: 5912.48051
Deduct 77 from 150 and we're left 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.

Moving on to step 12:
77 goes into 730 9 times with a remainder of 37.
The next digit of our result is 9. 
Result so far: 5912.480519
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.

Step 13:
The number 77 fits into 370 4 times, leaving a remainder of 62.
The number 4 becomes the next digit in our result. 
Result so far: 5912.4805194
Subtract 308 from 370 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 14:
620 divided by 77 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 5912.48051948
If we take 616 away from 620, we end up 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.

The final outcome is 5912.48051948, with a leftover of 4e-09.