We look at the division of 69636830 by 77 
The aim is to understand the frequency of 77 in 69636830.

Advancing to step 1:
77 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 77

Moving on to step 2:
The number 77 fits into 69 0 times, leaving a remainder of 69.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 69 leaves us with 69.
Fetch the next digit (6) from the dividend, attach it to 69 and continue: 696 / 77

On to step 3:
696 divided by 77 is 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 9.0
The remainder is 3 after subtracting 693 from 696.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 77

Going ahead to step 4:
When dividing 33 by 77, we get 0 with a remainder of 33.
The next digit of our result is 0. 
Result so far: 90.0
Subtract 0 from 33 to get 33.
Bring next digit (6) of the dividend behind the 33 and repeat the process: 336 / 77

Going ahead to step 5:
When dividing 336 by 77, we get 4 with a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 904.0
If we subtract 308 from 336, we get 28.
Grab the next digit (8) from the dividend, add it to 28, then carry on: 288 / 77

Advancing to step 6:
If we divide 288 by 77, we get 3 and a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 9043.0
Subtract 231 from 288 to get 57.
Bring next digit (3) of the dividend behind the 57 and repeat the process: 573 / 77

Step 7:
If we divide 573 by 77, we get 7 and a remainder of 34.
Put 7 as the next digit of the answer. 
Result so far: 90437.0
The remainder is 34 after subtracting 539 from 573.
Grab the next digit (0) from the dividend, add it to 34, then carry on: 340 / 77

Step 8:
If we divide 340 by 77, we get 4 and a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 904374.0
Deduct 308 from 340 and we're left 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.

Step 9:
The number 77 fits into 320 4 times, leaving a remainder of 12.
The next digit of our result is 4. 
Result so far: 904374.4
If we take 308 away from 320, we end up with 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:
77 can be fit into 120 1 times, resulting in a remainder of 43.
Put 1 as the next digit of the answer. 
Result so far: 904374.41
The remainder is 43 after subtracting 77 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 11:
77 can be fit into 430 5 times, resulting in a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 904374.415
Deduct 385 from 430 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 12:
450 divided by 77 is 5 with a remainder of 65.
The next digit of our result is 5. 
Result so far: 904374.4155
Subtracting 385 from 450 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final outcome is 904374.4155, with a leftover of 0.00065.