We look at the division of 859636 by 77 
The aim is to understand the frequency of 77 in 859636.

Step 1:
The number 77 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 77

On to step 2:
When dividing 85 by 77, we get 1 with a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 8 after subtracting 77 from 85.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 77

Let's proceed to step 3:
89 divided by 77 is 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we subtract 77 from 89, we get 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 77

Step 4:
126 divided by 77 is 1 with a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 111.0
If we subtract 77 from 126, we get 49.
Grab the next digit (3) from the dividend, add it to 49, then carry on: 493 / 77

Moving on to step 5:
If we divide 493 by 77, we get 6 and a remainder of 31.
The next digit of our result is 6. 
Result so far: 1116.0
Subtracting 462 from 493 leaves us with 31.
Append the next digit (6) from the dividend to 31 and continue with: 316 / 77

Moving on to step 6:
If we divide 316 by 77, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 11164.0
Deduct 308 from 316 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 7:
The number 77 fits into 80 1 times, leaving a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 11164.1
Subtracting 77 from 80 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 8:
The number 77 fits into 30 0 times, leaving a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 11164.1
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
If we divide 300 by 77, we get 3 and a remainder of 69.
Use 3 as the next digit of our solution. 
Result so far: 11164.103
Subtract 231 from 300 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 10:
77 goes into 690 8 times with a remainder of 74.
Write down 8 as next digit of the result. 
Result so far: 11164.1038
Subtracting 616 from 690 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 11:
740 divided by 77 is 9 with a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 11164.10389
If we subtract 693 from 740, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 12:
When dividing 470 by 77, we get 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 11164.103896
If we subtract 462 from 470, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 13:
When dividing 80 by 77, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 11164.1038961
The remainder is 3 after subtracting 77 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 14:
When dividing 30 by 77, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 11164.1038961
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 11164.1038961 and a remainder of 3e-08.