770394 ÷ 88 
The aim is to understand the frequency of 88 in 770394.

Advancing to step 1:
When dividing 7 by 88, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 88

Moving on to step 2:
The number 88 fits into 77 0 times, leaving a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Fetch the next digit (0) from the dividend, attach it to 77 and continue: 770 / 88

Advancing to step 3:
88 goes into 770 8 times with a remainder of 66.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 704 from 770 leaves us with 66.
Bring next digit (3) of the dividend behind the 66 and repeat the process: 663 / 88

Step 4:
88 can be fit into 663 7 times, resulting in a remainder of 47.
Put 7 as the next digit of the answer. 
Result so far: 87.0
The remainder is 47 after subtracting 616 from 663.
Append the next digit (9) from the dividend to 47 and continue with: 479 / 88

Advancing to step 5:
479 divided by 88 is 5 with a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 875.0
The remainder is 39 after subtracting 440 from 479.
Bring next digit (4) of the dividend behind the 39 and repeat the process: 394 / 88

Moving on to step 6:
88 can be fit into 394 4 times, resulting in a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 8754.0
Deduct 352 from 394 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 7:
When dividing 420 by 88, we get 4 with a remainder of 68.
Put 4 as the next digit of the answer. 
Result so far: 8754.4
The remainder is 68 after subtracting 352 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 8:
88 can be fit into 680 7 times, resulting in a remainder of 64.
Use 7 as the next digit of our solution. 
Result so far: 8754.47
If we take 616 away from 680, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 9:
88 can be fit into 640 7 times, resulting in a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 8754.477
If we take 616 away from 640, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 8754.477 with a remainder of 0.0024.