We're dividing 77391495 by 414 
The aim is to understand the frequency of 414 in 77391495.

Step 1:
When dividing 7 by 414, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 414

Step 2:
When dividing 77 by 414, 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 subtract 0 from 77, we get 77.
Bring next digit (3) of the dividend behind the 77 and repeat the process: 773 / 414

Advancing to step 3:
The number 414 fits into 773 1 times, leaving a remainder of 359.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 414 from 773 leaves us with 359.
Append the next digit (9) from the dividend to 359 and continue with: 3599 / 414

Going ahead to step 4:
If we divide 3599 by 414, we get 8 and a remainder of 287.
Write down 8 as next digit of the result. 
Result so far: 18.0
Deduct 3312 from 3599 and we're left with 287.
Fetch the next digit (1) from the dividend, attach it to 287 and continue: 2871 / 414

On to step 5:
414 can be fit into 2871 6 times, resulting in a remainder of 387.
Write down 6 as next digit of the result. 
Result so far: 186.0
Deduct 2484 from 2871 and we're left with 387.
Fetch the next digit (4) from the dividend, attach it to 387 and continue: 3874 / 414

Advancing to step 6:
3874 divided by 414 is 9 with a remainder of 148.
Put 9 as the next digit of the answer. 
Result so far: 1869.0
Deduct 3726 from 3874 and we're left with 148.
Take the next digit (9) from the dividend and append it to 148, then repeat: 1489 / 414

Advancing to step 7:
The number 414 fits into 1489 3 times, leaving a remainder of 247.
Put 3 as the next digit of the answer. 
Result so far: 18693.0
If we take 1242 away from 1489, we end up with 247.
Take the next digit (5) from the dividend and append it to 247, then repeat: 2475 / 414

Going ahead to step 8:
When dividing 2475 by 414, we get 5 with a remainder of 405.
Write down 5 as next digit of the result. 
Result so far: 186935.0
If we subtract 2070 from 2475, we get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

On to step 9:
The number 414 fits into 4050 9 times, leaving a remainder of 324.
Use 9 as the next digit of our solution. 
Result so far: 186935.9
Deduct 3726 from 4050 and we're left with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 10:
When dividing 3240 by 414, we get 7 with a remainder of 342.
Use 7 as the next digit of our solution. 
Result so far: 186935.97
Subtracting 2898 from 3240 leaves us with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Going ahead to step 11:
When dividing 3420 by 414, we get 8 with a remainder of 108.
Record the quotient 8 as the next digit in the result. 
Result so far: 186935.978
The remainder is 108 after subtracting 3312 from 3420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

On to step 12:
414 goes into 1080 2 times with a remainder of 252.
The next digit of our result is 2. 
Result so far: 186935.9782
Deduct 828 from 1080 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

On to step 13:
If we divide 2520 by 414, we get 6 and a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 186935.97826
Deduct 2484 from 2520 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 14:
360 divided by 414 is 0 with a remainder of 360.
Record the quotient 0 as the next digit in the result. 
Result so far: 186935.97826
The remainder is 360 after subtracting 0 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 15:
3600 divided by 414 is 8 with a remainder of 288.
Put 8 as the next digit of the answer. 
Result so far: 186935.9782608
If we subtract 3312 from 3600, we get 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 16:
414 goes into 2880 6 times with a remainder of 396.
The next digit of our result is 6. 
Result so far: 186935.97826086
Deduct 2484 from 2880 and we're left with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

The final result is 186935.97826086 with a remainder of 3.96e-07.