69917502 ÷ 770 
The aim is to understand the frequency of 770 in 69917502.

Step 1:
If we divide 6 by 770, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 770

Moving on to step 2:
If we divide 69 by 770, we get 0 and a remainder of 69.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 69, we end up with 69.
Take the next digit (9) from the dividend and append it to 69, then repeat: 699 / 770

Step 3:
When dividing 699 by 770, we get 0 with a remainder of 699.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 699, we get 699.
Take the next digit (1) from the dividend and append it to 699, then repeat: 6991 / 770

Going ahead to step 4:
If we divide 6991 by 770, we get 9 and a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 6930 from 6991 to get 61.
Grab the next digit (7) from the dividend, add it to 61, then carry on: 617 / 770

Going ahead to step 5:
770 goes into 617 0 times with a remainder of 617.
Use 0 as the next digit of our solution. 
Result so far: 90.0
The remainder is 617 after subtracting 0 from 617.
Append the next digit (5) from the dividend to 617 and continue with: 6175 / 770

Moving on to step 6:
If we divide 6175 by 770, we get 8 and a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 908.0
Subtracting 6160 from 6175 leaves us with 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 770

Step 7:
If we divide 150 by 770, we get 0 and a remainder of 150.
The next digit of our result is 0. 
Result so far: 9080.0
The remainder is 150 after subtracting 0 from 150.
Include the next digit (2) from the dividend after 150, then repeat: 1502 / 770

On to step 8:
If we divide 1502 by 770, we get 1 and a remainder of 732.
The next digit of our result is 1. 
Result so far: 90801.0
The remainder is 732 after subtracting 770 from 1502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

Advancing to step 9:
The number 770 fits into 7320 9 times, leaving a remainder of 390.
Put 9 as the next digit of the answer. 
Result so far: 90801.9
The remainder is 390 after subtracting 6930 from 7320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 10:
If we divide 3900 by 770, we get 5 and a remainder of 50.
The next digit of our result is 5. 
Result so far: 90801.95
Deduct 3850 from 3900 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
770 goes into 500 0 times with a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 90801.95
Subtract 0 from 500 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 12:
770 can be fit into 5000 6 times, resulting in a remainder of 380.
The number 6 becomes the next digit in our result. 
Result so far: 90801.9506
Deduct 4620 from 5000 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 13:
The number 770 fits into 3800 4 times, leaving a remainder of 720.
Write down 4 as next digit of the result. 
Result so far: 90801.95064
The remainder is 720 after subtracting 3080 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Advancing to step 14:
When dividing 7200 by 770, we get 9 with a remainder of 270.
Put 9 as the next digit of the answer. 
Result so far: 90801.950649
The remainder is 270 after subtracting 6930 from 7200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 15:
If we divide 2700 by 770, we get 3 and a remainder of 390.
Put 3 as the next digit of the answer. 
Result so far: 90801.9506493
If we take 2310 away from 2700, we end up with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Step 16:
When dividing 3900 by 770, we get 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 90801.95064935
Subtracting 3850 from 3900 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 90801.95064935 with a remainder of 5e-08.