We divide 90109863 by 699
The aim is to understand the frequency of 699 in 90109863.

Moving on to step 1:
9 divided by 699 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 699

Going ahead to step 2:
The number 699 fits into 90 0 times, leaving a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Take the next digit (1) from the dividend and append it to 90, then repeat: 901 / 699

On to step 3:
If we divide 901 by 699, we get 1 and a remainder of 202.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 202 after subtracting 699 from 901.
Fetch the next digit (0) from the dividend, attach it to 202 and continue: 2020 / 699

Step 4:
If we divide 2020 by 699, we get 2 and a remainder of 622.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 1398 from 2020 leaves us with 622.
Include the next digit (9) from the dividend after 622, then repeat: 6229 / 699

Step 5:
699 can be fit into 6229 8 times, resulting in a remainder of 637.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
Subtracting 5592 from 6229 leaves us with 637.
Take the next digit (8) from the dividend and append it to 637, then repeat: 6378 / 699

Going ahead to step 6:
699 goes into 6378 9 times with a remainder of 87.
Use 9 as the next digit of our solution. 
Result so far: 1289.0
If we subtract 6291 from 6378, we get 87.
Append the next digit (6) from the dividend to 87 and continue with: 876 / 699

Advancing to step 7:
The number 699 fits into 876 1 times, leaving a remainder of 177.
Record the quotient 1 as the next digit in the result. 
Result so far: 12891.0
The remainder is 177 after subtracting 699 from 876.
Grab the next digit (3) from the dividend, add it to 177, then carry on: 1773 / 699

Advancing to step 8:
699 goes into 1773 2 times with a remainder of 375.
Record the quotient 2 as the next digit in the result. 
Result so far: 128912.0
The remainder is 375 after subtracting 1398 from 1773.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Let's proceed to step 9:
3750 divided by 699 is 5 with a remainder of 255.
The number 5 becomes the next digit in our result. 
Result so far: 128912.5
The remainder is 255 after subtracting 3495 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Advancing to step 10:
The number 699 fits into 2550 3 times, leaving a remainder of 453.
Put 3 as the next digit of the answer. 
Result so far: 128912.53
The remainder is 453 after subtracting 2097 from 2550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

Step 11:
If we divide 4530 by 699, we get 6 and a remainder of 336.
The number 6 becomes the next digit in our result. 
Result so far: 128912.536
Deduct 4194 from 4530 and we're left with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

On to step 12:
The number 699 fits into 3360 4 times, leaving a remainder of 564.
Use 4 as the next digit of our solution. 
Result so far: 128912.5364
If we take 2796 away from 3360, we end up with 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Moving on to step 13:
699 can be fit into 5640 8 times, resulting in a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 128912.53648
If we subtract 5592 from 5640, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 14:
If we divide 480 by 699, we get 0 and a remainder of 480.
Write down 0 as next digit of the result. 
Result so far: 128912.53648
If we subtract 0 from 480, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Step 15:
699 can be fit into 4800 6 times, resulting in a remainder of 606.
The next digit of our result is 6. 
Result so far: 128912.5364806
Deduct 4194 from 4800 and we're left with 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Going ahead to step 16:
699 goes into 6060 8 times with a remainder of 468.
Put 8 as the next digit of the answer. 
Result so far: 128912.53648068
Subtract 5592 from 6060 to get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

The final result is 128912.53648068 with a remainder of 4.68e-07.