43452154 ÷ 215 
We're looking to find how many times 215 goes into 43452154.

Going ahead to step 1:
4 divided by 215 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 215

On to step 2:
The number 215 fits into 43 0 times, leaving a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Grab the next digit (4) from the dividend, add it to 43, then carry on: 434 / 215

Moving on to step 3:
If we divide 434 by 215, we get 2 and a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 430 from 434, we get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 215

On to step 4:
When dividing 45 by 215, we get 0 with a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 20.0
The remainder is 45 after subtracting 0 from 45.
Include the next digit (2) from the dividend after 45, then repeat: 452 / 215

Moving on to step 5:
When dividing 452 by 215, we get 2 with a remainder of 22.
The next digit of our result is 2. 
Result so far: 202.0
If we take 430 away from 452, we end up with 22.
Take the next digit (1) from the dividend and append it to 22, then repeat: 221 / 215

Advancing to step 6:
215 can be fit into 221 1 times, resulting in a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 2021.0
Subtract 215 from 221 to get 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 215

Advancing to step 7:
When dividing 65 by 215, we get 0 with a remainder of 65.
The number 0 becomes the next digit in our result. 
Result so far: 20210.0
Subtract 0 from 65 to get 65.
Grab the next digit (4) from the dividend, add it to 65, then carry on: 654 / 215

On to step 8:
If we divide 654 by 215, we get 3 and a remainder of 9.
Record the quotient 3 as the next digit in the result. 
Result so far: 202103.0
The remainder is 9 after subtracting 645 from 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
If we divide 90 by 215, we get 0 and a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 202103.0
If we take 0 away from 90, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 10:
When dividing 900 by 215, we get 4 with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 202103.04
Subtract 860 from 900 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
If we divide 400 by 215, we get 1 and a remainder of 185.
Put 1 as the next digit of the answer. 
Result so far: 202103.041
Subtract 215 from 400 to get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 12:
If we divide 1850 by 215, we get 8 and a remainder of 130.
The next digit of our result is 8. 
Result so far: 202103.0418
Subtract 1720 from 1850 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

On to step 13:
The number 215 fits into 1300 6 times, leaving a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 202103.04186
If we subtract 1290 from 1300, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 14:
215 goes into 100 0 times with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 202103.04186
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Advancing to step 15:
215 goes into 1000 4 times with a remainder of 140.
Use 4 as the next digit of our solution. 
Result so far: 202103.0418604
If we subtract 860 from 1000, we get 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 16:
1400 divided by 215 is 6 with a remainder of 110.
The next digit of our result is 6. 
Result so far: 202103.04186046
Subtracting 1290 from 1400 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Our division results in 202103.04186046 with a remaining 1.1e-07.