We divide 166109 by 85
We want to divide 166109 by 85.

Advancing to step 1:
When dividing 1 by 85, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 85

Going ahead to step 2:
16 divided by 85 is 0 with a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 16 to get 16.
Bring next digit (6) of the dividend behind the 16 and repeat the process: 166 / 85

Advancing to step 3:
If we divide 166 by 85, we get 1 and a remainder of 81.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 85 away from 166, we end up with 81.
Fetch the next digit (1) from the dividend, attach it to 81 and continue: 811 / 85

Step 4:
85 can be fit into 811 9 times, resulting in a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 19.0
The remainder is 46 after subtracting 765 from 811.
Grab the next digit (0) from the dividend, add it to 46, then carry on: 460 / 85

Advancing to step 5:
460 divided by 85 is 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 195.0
Subtract 425 from 460 to get 35.
Fetch the next digit (9) from the dividend, attach it to 35 and continue: 359 / 85

Step 6:
85 can be fit into 359 4 times, resulting in a remainder of 19.
Put 4 as the next digit of the answer. 
Result so far: 1954.0
Subtract 340 from 359 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
When dividing 190 by 85, we get 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 1954.2
If we take 170 away from 190, we end up 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.

Step 8:
The number 85 fits into 200 2 times, leaving a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 1954.22
The remainder is 30 after subtracting 170 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 1954.22 with a remaining 0.03.