We're dividing 781566 by 76 
The aim is to understand the frequency of 76 in 781566.

Let's proceed to step 1:
The number 76 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 76

Moving on to step 2:
78 divided by 76 is 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 76 from 78 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 76

Advancing to step 3:
If we divide 21 by 76, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 76

Let's proceed to step 4:
76 can be fit into 215 2 times, resulting in a remainder of 63.
The next digit of our result is 2. 
Result so far: 102.0
Subtract 152 from 215 to get 63.
Grab the next digit (6) from the dividend, add it to 63, then carry on: 636 / 76

Going ahead to step 5:
76 can be fit into 636 8 times, resulting in a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 1028.0
The remainder is 28 after subtracting 608 from 636.
Take the next digit (6) from the dividend and append it to 28, then repeat: 286 / 76

Moving on to step 6:
When dividing 286 by 76, we get 3 with a remainder of 58.
Write down 3 as next digit of the result. 
Result so far: 10283.0
If we subtract 228 from 286, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 7:
If we divide 580 by 76, we get 7 and a remainder of 48.
The next digit of our result is 7. 
Result so far: 10283.7
If we take 532 away from 580, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 8:
480 divided by 76 is 6 with a remainder of 24.
The next digit of our result is 6. 
Result so far: 10283.76
The remainder is 24 after subtracting 456 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 9:
If we divide 240 by 76, we get 3 and a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 10283.763
Subtract 228 from 240 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 10:
76 goes into 120 1 times with a remainder of 44.
Use 1 as the next digit of our solution. 
Result so far: 10283.7631
Deduct 76 from 120 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 11:
When dividing 440 by 76, we get 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 10283.76315
Subtract 380 from 440 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
The number 76 fits into 600 7 times, leaving a remainder of 68.
The number 7 becomes the next digit in our result. 
Result so far: 10283.763157
If we take 532 away from 600, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 13:
76 can be fit into 680 8 times, resulting in a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 10283.7631578
Subtracting 608 from 680 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 14:
The number 76 fits into 720 9 times, leaving a remainder of 36.
Use 9 as the next digit of our solution. 
Result so far: 10283.76315789
If we take 684 away from 720, we end up 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.

The final outcome is 10283.76315789, with a leftover of 3.6e-08.