43128600 divided by 166 
We're looking to find how many times 166 goes into 43128600.

Moving on to step 1:
166 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 166

Step 2:
43 divided by 166 is 0 with a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Fetch the next digit (1) from the dividend, attach it to 43 and continue: 431 / 166

Step 3:
The number 166 fits into 431 2 times, leaving a remainder of 99.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 332 from 431 and we're left with 99.
Take the next digit (2) from the dividend and append it to 99, then repeat: 992 / 166

Advancing to step 4:
166 goes into 992 5 times with a remainder of 162.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
If we subtract 830 from 992, we get 162.
Append the next digit (8) from the dividend to 162 and continue with: 1628 / 166

Moving on to step 5:
If we divide 1628 by 166, we get 9 and a remainder of 134.
The next digit of our result is 9. 
Result so far: 259.0
Subtracting 1494 from 1628 leaves us with 134.
Bring next digit (6) of the dividend behind the 134 and repeat the process: 1346 / 166

Let's proceed to step 6:
If we divide 1346 by 166, we get 8 and a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 2598.0
If we take 1328 away from 1346, we end up with 18.
Fetch the next digit (0) from the dividend, attach it to 18 and continue: 180 / 166

Advancing to step 7:
If we divide 180 by 166, we get 1 and a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 25981.0
Subtract 166 from 180 to get 14.
Grab the next digit (0) from the dividend, add it to 14, then carry on: 140 / 166

Going ahead to step 8:
When dividing 140 by 166, we get 0 with a remainder of 140.
Put 0 as the next digit of the answer. 
Result so far: 259810.0
Subtracting 0 from 140 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 9:
If we divide 1400 by 166, we get 8 and a remainder of 72.
Put 8 as the next digit of the answer. 
Result so far: 259810.8
If we subtract 1328 from 1400, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 10:
When dividing 720 by 166, we get 4 with a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 259810.84
The remainder is 56 after subtracting 664 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 11:
166 goes into 560 3 times with a remainder of 62.
Write down 3 as next digit of the result. 
Result so far: 259810.843
Subtracting 498 from 560 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 12:
When dividing 620 by 166, we get 3 with a remainder of 122.
The next digit of our result is 3. 
Result so far: 259810.8433
Deduct 498 from 620 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Our division results in 259810.8433 with a remaining 0.00122.