Let's divide 17690890 by 786
The aim is to understand the frequency of 786 in 17690890.

Going ahead to step 1:
786 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 786

On to step 2:
The number 786 fits into 17 0 times, leaving a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Grab the next digit (6) from the dividend, add it to 17, then carry on: 176 / 786

Going ahead to step 3:
If we divide 176 by 786, we get 0 and a remainder of 176.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 176 leaves us with 176.
Append the next digit (9) from the dividend to 176 and continue with: 1769 / 786

Let's proceed to step 4:
The number 786 fits into 1769 2 times, leaving a remainder of 197.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 1572 away from 1769, we end up with 197.
Include the next digit (0) from the dividend after 197, then repeat: 1970 / 786

Moving on to step 5:
786 goes into 1970 2 times with a remainder of 398.
The next digit of our result is 2. 
Result so far: 22.0
If we subtract 1572 from 1970, we get 398.
Fetch the next digit (8) from the dividend, attach it to 398 and continue: 3988 / 786

Advancing to step 6:
If we divide 3988 by 786, we get 5 and a remainder of 58.
The next digit of our result is 5. 
Result so far: 225.0
Subtract 3930 from 3988 to get 58.
Append the next digit (9) from the dividend to 58 and continue with: 589 / 786

Moving on to step 7:
If we divide 589 by 786, we get 0 and a remainder of 589.
The number 0 becomes the next digit in our result. 
Result so far: 2250.0
Deduct 0 from 589 and we're left with 589.
Fetch the next digit (0) from the dividend, attach it to 589 and continue: 5890 / 786

On to step 8:
If we divide 5890 by 786, we get 7 and a remainder of 388.
Write down 7 as next digit of the result. 
Result so far: 22507.0
Subtract 5502 from 5890 to get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Going ahead to step 9:
786 can be fit into 3880 4 times, resulting in a remainder of 736.
Use 4 as the next digit of our solution. 
Result so far: 22507.4
Subtract 3144 from 3880 to get 736.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7360, and continue the process.

Let's proceed to step 10:
When dividing 7360 by 786, we get 9 with a remainder of 286.
The number 9 becomes the next digit in our result. 
Result so far: 22507.49
Subtract 7074 from 7360 to get 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Advancing to step 11:
786 can be fit into 2860 3 times, resulting in a remainder of 502.
The number 3 becomes the next digit in our result. 
Result so far: 22507.493
Deduct 2358 from 2860 and we're left with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Advancing to step 12:
If we divide 5020 by 786, we get 6 and a remainder of 304.
Use 6 as the next digit of our solution. 
Result so far: 22507.4936
If we take 4716 away from 5020, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 13:
786 goes into 3040 3 times with a remainder of 682.
Put 3 as the next digit of the answer. 
Result so far: 22507.49363
Deduct 2358 from 3040 and we're left with 682.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6820, and continue the process.

Going ahead to step 14:
The number 786 fits into 6820 8 times, leaving a remainder of 532.
The next digit of our result is 8. 
Result so far: 22507.493638
If we subtract 6288 from 6820, we get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Moving on to step 15:
5320 divided by 786 is 6 with a remainder of 604.
The number 6 becomes the next digit in our result. 
Result so far: 22507.4936386
If we take 4716 away from 5320, we end up with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Moving on to step 16:
The number 786 fits into 6040 7 times, leaving a remainder of 538.
Write down 7 as next digit of the result. 
Result so far: 22507.49363867
The remainder is 538 after subtracting 5502 from 6040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

The final outcome is 22507.49363867, with a leftover of 5.38e-07.