We divide 23743690 by 686
The aim is to understand the frequency of 686 in 23743690.

Let's proceed to step 1:
When dividing 2 by 686, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 686

Moving on to step 2:
When dividing 23 by 686, we get 0 with a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 23, we end up with 23.
Bring next digit (7) of the dividend behind the 23 and repeat the process: 237 / 686

Advancing to step 3:
237 divided by 686 is 0 with a remainder of 237.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 237, we get 237.
Grab the next digit (4) from the dividend, add it to 237, then carry on: 2374 / 686

Advancing to step 4:
When dividing 2374 by 686, we get 3 with a remainder of 316.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 2058 from 2374 leaves us with 316.
Append the next digit (3) from the dividend to 316 and continue with: 3163 / 686

Step 5:
The number 686 fits into 3163 4 times, leaving a remainder of 419.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
The remainder is 419 after subtracting 2744 from 3163.
Grab the next digit (6) from the dividend, add it to 419, then carry on: 4196 / 686

Advancing to step 6:
686 goes into 4196 6 times with a remainder of 80.
Write down 6 as next digit of the result. 
Result so far: 346.0
Deduct 4116 from 4196 and we're left with 80.
Take the next digit (9) from the dividend and append it to 80, then repeat: 809 / 686

Advancing to step 7:
If we divide 809 by 686, we get 1 and a remainder of 123.
Put 1 as the next digit of the answer. 
Result so far: 3461.0
If we take 686 away from 809, we end up with 123.
Fetch the next digit (0) from the dividend, attach it to 123 and continue: 1230 / 686

Moving on to step 8:
1230 divided by 686 is 1 with a remainder of 544.
Use 1 as the next digit of our solution. 
Result so far: 34611.0
The remainder is 544 after subtracting 686 from 1230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Step 9:
686 can be fit into 5440 7 times, resulting in a remainder of 638.
Use 7 as the next digit of our solution. 
Result so far: 34611.7
Subtracting 4802 from 5440 leaves us with 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

Let's proceed to step 10:
When dividing 6380 by 686, we get 9 with a remainder of 206.
Put 9 as the next digit of the answer. 
Result so far: 34611.79
If we subtract 6174 from 6380, we get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Advancing to step 11:
The number 686 fits into 2060 3 times, leaving a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 34611.793
If we subtract 2058 from 2060, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 12:
686 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 34611.793
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 13:
686 can be fit into 200 0 times, resulting in a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 34611.793
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 34611.793 with a remainder of 0.0002.