221686 divided by 1 
The aim is to understand the frequency of 1 in 221686.

Step 1:
1 can be fit into 2 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 2 from 2, we get 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 1

Going ahead to step 2:
1 goes into 2 2 times with a remainder of 0.
The next digit of our result is 2. 
Result so far: 22.0
Subtracting 2 from 2 leaves us with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 1

On to step 3:
1 can be fit into 1 1 times, resulting in a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 221.0
The remainder is 0 after subtracting 1 from 1.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 1

Advancing to step 4:
The number 1 fits into 6 6 times, leaving a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 2216.0
If we subtract 6 from 6, we get 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 1

Advancing to step 5:
If we divide 8 by 1, we get 8 and a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 22168.0
If we take 8 away from 8, we end up with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 1

Let's proceed to step 6:
1 goes into 6 6 times with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 221686.0
Subtracting 6 from 6 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
1 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 221686.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
0 divided by 1 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 221686.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 221686.0 with a remainder of 0.0.