We look at the division of 773591 by 69 
The aim is to understand the frequency of 69 in 773591.

Going ahead to step 1:
If we divide 7 by 69, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 69

Advancing to step 2:
69 can be fit into 77 1 times, resulting in a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 69 from 77, we get 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 69

Advancing to step 3:
If we divide 83 by 69, we get 1 and a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 11.0
Deduct 69 from 83 and we're left with 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 69

Step 4:
69 can be fit into 145 2 times, resulting in a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 112.0
The remainder is 7 after subtracting 138 from 145.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 69

Moving on to step 5:
69 can be fit into 79 1 times, resulting in a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 1121.0
If we subtract 69 from 79, we get 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 69

Moving on to step 6:
101 divided by 69 is 1 with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 11211.0
Subtracting 69 from 101 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 7:
69 can be fit into 320 4 times, resulting in a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 11211.4
If we take 276 away from 320, we end up 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.

Let's proceed to step 8:
If we divide 440 by 69, we get 6 and a remainder of 26.
The next digit of our result is 6. 
Result so far: 11211.46
If we subtract 414 from 440, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 9:
If we divide 260 by 69, we get 3 and a remainder of 53.
The number 3 becomes the next digit in our result. 
Result so far: 11211.463
The remainder is 53 after subtracting 207 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 10:
530 divided by 69 is 7 with a remainder of 47.
Record the quotient 7 as the next digit in the result. 
Result so far: 11211.4637
If we take 483 away from 530, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 11:
The number 69 fits into 470 6 times, leaving a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 11211.46376
Deduct 414 from 470 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 12:
69 goes into 560 8 times with a remainder of 8.
The next digit of our result is 8. 
Result so far: 11211.463768
The remainder is 8 after subtracting 552 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
If we divide 80 by 69, we get 1 and a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 11211.4637681
If we take 69 away from 80, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 14:
69 can be fit into 110 1 times, resulting in a remainder of 41.
Put 1 as the next digit of the answer. 
Result so far: 11211.46376811
Subtract 69 from 110 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

The final outcome is 11211.46376811, with a leftover of 4.1e-08.