We divide 166586 by 75
Let's see how many times 75 fits into 166586.

Moving on to step 1:
75 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 75

On to step 2:
16 divided by 75 is 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 16, we get 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 75

Step 3:
If we divide 166 by 75, we get 2 and a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 150 from 166 to get 16.
Bring next digit (5) of the dividend behind the 16 and repeat the process: 165 / 75

Advancing to step 4:
75 can be fit into 165 2 times, resulting in a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 22.0
If we take 150 away from 165, we end up with 15.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 75

Advancing to step 5:
158 divided by 75 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 222.0
If we subtract 150 from 158, we get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 75

On to step 6:
75 goes into 86 1 times with a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 2221.0
Deduct 75 from 86 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
110 divided by 75 is 1 with a remainder of 35.
The next digit of our result is 1. 
Result so far: 2221.1
Subtracting 75 from 110 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 8:
When dividing 350 by 75, we get 4 with a remainder of 50.
Use 4 as the next digit of our solution. 
Result so far: 2221.14
Deduct 300 from 350 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
If we divide 500 by 75, we get 6 and a remainder of 50.
Write down 6 as next digit of the result. 
Result so far: 2221.146
Subtracting 450 from 500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
If we divide 500 by 75, we get 6 and a remainder of 50.
The next digit of our result is 6. 
Result so far: 2221.1466
Subtract 450 from 500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Our division results in 2221.1466 with a remaining 0.0005.