We look at the division of 77259888 by 417 
The aim is to understand the frequency of 417 in 77259888.

Advancing to step 1:
If we divide 7 by 417, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 417

Let's proceed to step 2:
When dividing 77 by 417, we get 0 with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Include the next digit (2) from the dividend after 77, then repeat: 772 / 417

On to step 3:
417 goes into 772 1 times with a remainder of 355.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 417 from 772, we get 355.
Fetch the next digit (5) from the dividend, attach it to 355 and continue: 3555 / 417

On to step 4:
417 can be fit into 3555 8 times, resulting in a remainder of 219.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 219 after subtracting 3336 from 3555.
Take the next digit (9) from the dividend and append it to 219, then repeat: 2199 / 417

Step 5:
When dividing 2199 by 417, we get 5 with a remainder of 114.
The number 5 becomes the next digit in our result. 
Result so far: 185.0
Subtracting 2085 from 2199 leaves us with 114.
Append the next digit (8) from the dividend to 114 and continue with: 1148 / 417

Moving on to step 6:
417 goes into 1148 2 times with a remainder of 314.
The number 2 becomes the next digit in our result. 
Result so far: 1852.0
Subtracting 834 from 1148 leaves us with 314.
Bring next digit (8) of the dividend behind the 314 and repeat the process: 3148 / 417

On to step 7:
If we divide 3148 by 417, we get 7 and a remainder of 229.
The next digit of our result is 7. 
Result so far: 18527.0
The remainder is 229 after subtracting 2919 from 3148.
Include the next digit (8) from the dividend after 229, then repeat: 2298 / 417

Moving on to step 8:
If we divide 2298 by 417, we get 5 and a remainder of 213.
Put 5 as the next digit of the answer. 
Result so far: 185275.0
Subtract 2085 from 2298 to get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

On to step 9:
2130 divided by 417 is 5 with a remainder of 45.
The next digit of our result is 5. 
Result so far: 185275.5
Subtract 2085 from 2130 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 10:
417 goes into 450 1 times with a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 185275.51
If we subtract 417 from 450, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 11:
417 can be fit into 330 0 times, resulting in a remainder of 330.
The next digit of our result is 0. 
Result so far: 185275.51
The remainder is 330 after subtracting 0 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Step 12:
The number 417 fits into 3300 7 times, leaving a remainder of 381.
Put 7 as the next digit of the answer. 
Result so far: 185275.5107
Subtracting 2919 from 3300 leaves us with 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Step 13:
417 goes into 3810 9 times with a remainder of 57.
Use 9 as the next digit of our solution. 
Result so far: 185275.51079
The remainder is 57 after subtracting 3753 from 3810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 14:
417 goes into 570 1 times with a remainder of 153.
The next digit of our result is 1. 
Result so far: 185275.510791
Subtract 417 from 570 to get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Moving on to step 15:
The number 417 fits into 1530 3 times, leaving a remainder of 279.
Write down 3 as next digit of the result. 
Result so far: 185275.5107913
The remainder is 279 after subtracting 1251 from 1530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Let's proceed to step 16:
2790 divided by 417 is 6 with a remainder of 288.
Record the quotient 6 as the next digit in the result. 
Result so far: 185275.51079136
Deduct 2502 from 2790 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

After the division, we end up with 185275.51079136 and a remainder of 2.88e-07.