We look at the division of 2309070 by 690 
The aim is to understand the frequency of 690 in 2309070.

On to step 1:
690 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 690

Going ahead to step 2:
If we divide 23 by 690, we get 0 and a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 23, we get 23.
Include the next digit (0) from the dividend after 23, then repeat: 230 / 690

Step 3:
690 can be fit into 230 0 times, resulting in a remainder of 230.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 230, we end up with 230.
Include the next digit (9) from the dividend after 230, then repeat: 2309 / 690

Going ahead to step 4:
2309 divided by 690 is 3 with a remainder of 239.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 2070 from 2309, we get 239.
Append the next digit (0) from the dividend to 239 and continue with: 2390 / 690

Advancing to step 5:
When dividing 2390 by 690, we get 3 with a remainder of 320.
The next digit of our result is 3. 
Result so far: 33.0
If we subtract 2070 from 2390, we get 320.
Fetch the next digit (7) from the dividend, attach it to 320 and continue: 3207 / 690

On to step 6:
690 can be fit into 3207 4 times, resulting in a remainder of 447.
Record the quotient 4 as the next digit in the result. 
Result so far: 334.0
Deduct 2760 from 3207 and we're left with 447.
Fetch the next digit (0) from the dividend, attach it to 447 and continue: 4470 / 690

Let's proceed to step 7:
690 goes into 4470 6 times with a remainder of 330.
The next digit of our result is 6. 
Result so far: 3346.0
The remainder is 330 after subtracting 4140 from 4470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Let's proceed to step 8:
The number 690 fits into 3300 4 times, leaving a remainder of 540.
Write down 4 as next digit of the result. 
Result so far: 3346.4
If we subtract 2760 from 3300, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Moving on to step 9:
690 goes into 5400 7 times with a remainder of 570.
Record the quotient 7 as the next digit in the result. 
Result so far: 3346.47
If we take 4830 away from 5400, we end up with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Advancing to step 10:
690 goes into 5700 8 times with a remainder of 180.
Put 8 as the next digit of the answer. 
Result so far: 3346.478
If we subtract 5520 from 5700, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 11:
690 goes into 1800 2 times with a remainder of 420.
Write down 2 as next digit of the result. 
Result so far: 3346.4782
If we take 1380 away from 1800, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Let's proceed to step 12:
When dividing 4200 by 690, we get 6 with a remainder of 60.
The next digit of our result is 6. 
Result so far: 3346.47826
If we take 4140 away from 4200, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 13:
The number 690 fits into 600 0 times, leaving a remainder of 600.
Write down 0 as next digit of the result. 
Result so far: 3346.47826
Subtract 0 from 600 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 14:
The number 690 fits into 6000 8 times, leaving a remainder of 480.
The next digit of our result is 8. 
Result so far: 3346.4782608
Subtract 5520 from 6000 to 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.

Going ahead to step 15:
If we divide 4800 by 690, we get 6 and a remainder of 660.
The next digit of our result is 6. 
Result so far: 3346.47826086
Deduct 4140 from 4800 and we're left with 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

The quotient of the division is 3346.47826086, and the remainder is 6.6e-07.