166678 divided by 206 
The aim is to understand the frequency of 206 in 166678.

Advancing to step 1:
1 divided by 206 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 206

Step 2:
If we divide 16 by 206, we get 0 and a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 206

Going ahead to step 3:
When dividing 166 by 206, we get 0 with a remainder of 166.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 166 after subtracting 0 from 166.
Bring next digit (6) of the dividend behind the 166 and repeat the process: 1666 / 206

Going ahead to step 4:
When dividing 1666 by 206, we get 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 1648 from 1666 and we're left with 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 206

Let's proceed to step 5:
206 can be fit into 187 0 times, resulting in a remainder of 187.
The next digit of our result is 0. 
Result so far: 80.0
If we subtract 0 from 187, we get 187.
Append the next digit (8) from the dividend to 187 and continue with: 1878 / 206

Going ahead to step 6:
When dividing 1878 by 206, we get 9 with a remainder of 24.
The number 9 becomes the next digit in our result. 
Result so far: 809.0
Deduct 1854 from 1878 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
240 divided by 206 is 1 with a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 809.1
If we subtract 206 from 240, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 8:
When dividing 340 by 206, we get 1 with a remainder of 134.
The number 1 becomes the next digit in our result. 
Result so far: 809.11
If we take 206 away from 340, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

After the division, we end up with 809.11 and a remainder of 0.134.