43621509 divided by 105 
Our goal is to divide 43621509 by 105.

On to step 1:
When dividing 4 by 105, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 105

Let's proceed to step 2:
105 can be fit into 43 0 times, resulting in a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Include the next digit (6) from the dividend after 43, then repeat: 436 / 105

Going ahead to step 3:
The number 105 fits into 436 4 times, leaving a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 420 from 436, we get 16.
Take the next digit (2) from the dividend and append it to 16, then repeat: 162 / 105

Step 4:
162 divided by 105 is 1 with a remainder of 57.
Put 1 as the next digit of the answer. 
Result so far: 41.0
Deduct 105 from 162 and we're left with 57.
Append the next digit (1) from the dividend to 57 and continue with: 571 / 105

Let's proceed to step 5:
If we divide 571 by 105, we get 5 and a remainder of 46.
Put 5 as the next digit of the answer. 
Result so far: 415.0
If we take 525 away from 571, we end up with 46.
Grab the next digit (5) from the dividend, add it to 46, then carry on: 465 / 105

On to step 6:
The number 105 fits into 465 4 times, leaving a remainder of 45.
The number 4 becomes the next digit in our result. 
Result so far: 4154.0
Subtracting 420 from 465 leaves us with 45.
Take the next digit (0) from the dividend and append it to 45, then repeat: 450 / 105

Going ahead to step 7:
When dividing 450 by 105, we get 4 with a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 41544.0
The remainder is 30 after subtracting 420 from 450.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 105

Going ahead to step 8:
105 goes into 309 2 times with a remainder of 99.
Record the quotient 2 as the next digit in the result. 
Result so far: 415442.0
If we subtract 210 from 309, we get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

On to step 9:
105 can be fit into 990 9 times, resulting in a remainder of 45.
Record the quotient 9 as the next digit in the result. 
Result so far: 415442.9
The remainder is 45 after subtracting 945 from 990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 10:
450 divided by 105 is 4 with a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 415442.94
The remainder is 30 after subtracting 420 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
When dividing 300 by 105, we get 2 with a remainder of 90.
Use 2 as the next digit of our solution. 
Result so far: 415442.942
Subtract 210 from 300 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 12:
900 divided by 105 is 8 with a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 415442.9428
Deduct 840 from 900 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 13:
If we divide 600 by 105, we get 5 and a remainder of 75.
The next digit of our result is 5. 
Result so far: 415442.94285
Subtracting 525 from 600 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 14:
If we divide 750 by 105, we get 7 and a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 415442.942857
The remainder is 15 after subtracting 735 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 15:
If we divide 150 by 105, we get 1 and a remainder of 45.
The number 1 becomes the next digit in our result. 
Result so far: 415442.9428571
Deduct 105 from 150 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 16:
105 can be fit into 450 4 times, resulting in a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 415442.94285714
Deduct 420 from 450 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 415442.94285714 and a remainder of 3e-08.