833397 ÷ 77 
The aim is to understand the frequency of 77 in 833397.

Advancing to step 1:
When dividing 8 by 77, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 77

Let's proceed to step 2:
83 divided by 77 is 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 77 from 83, we get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 77

Let's proceed to step 3:
When dividing 63 by 77, we get 0 with a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 63 leaves us with 63.
Take the next digit (3) from the dividend and append it to 63, then repeat: 633 / 77

Step 4:
77 can be fit into 633 8 times, resulting in a remainder of 17.
Put 8 as the next digit of the answer. 
Result so far: 108.0
If we subtract 616 from 633, we get 17.
Take the next digit (9) from the dividend and append it to 17, then repeat: 179 / 77

Going ahead to step 5:
77 goes into 179 2 times with a remainder of 25.
The number 2 becomes the next digit in our result. 
Result so far: 1082.0
If we subtract 154 from 179, we get 25.
Append the next digit (7) from the dividend to 25 and continue with: 257 / 77

Going ahead to step 6:
257 divided by 77 is 3 with a remainder of 26.
Record the quotient 3 as the next digit in the result. 
Result so far: 10823.0
Subtract 231 from 257 to 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.

Moving on to step 7:
If we divide 260 by 77, we get 3 and a remainder of 29.
Record the quotient 3 as the next digit in the result. 
Result so far: 10823.3
Subtract 231 from 260 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 8:
The number 77 fits into 290 3 times, leaving a remainder of 59.
Write down 3 as next digit of the result. 
Result so far: 10823.33
Subtracting 231 from 290 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

The final result is 10823.33 with a remainder of 0.059.