We look at the division of 4208751 by 105 
Our goal is to divide 4208751 by 105.

Step 1:
If we divide 4 by 105, we get 0 and 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.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 105

Advancing to step 2:
The number 105 fits into 42 0 times, leaving a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Append the next digit (0) from the dividend to 42 and continue with: 420 / 105

On to step 3:
When dividing 420 by 105, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 420 away from 420, we end up with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 105

Let's proceed to step 4:
If we divide 8 by 105, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 40.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 105

Step 5:
105 goes into 87 0 times with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 400.0
The remainder is 87 after subtracting 0 from 87.
Take the next digit (5) from the dividend and append it to 87, then repeat: 875 / 105

On to step 6:
The number 105 fits into 875 8 times, leaving a remainder of 35.
Use 8 as the next digit of our solution. 
Result so far: 4008.0
Subtracting 840 from 875 leaves us with 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 105

On to step 7:
If we divide 351 by 105, we get 3 and a remainder of 36.
Use 3 as the next digit of our solution. 
Result so far: 40083.0
Deduct 315 from 351 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
The number 105 fits into 360 3 times, leaving a remainder of 45.
Record the quotient 3 as the next digit in the result. 
Result so far: 40083.3
Subtract 315 from 360 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 9:
105 goes into 450 4 times with a remainder of 30.
The next digit of our result is 4. 
Result so far: 40083.34
If we subtract 420 from 450, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
105 can be fit into 300 2 times, resulting in a remainder of 90.
Write down 2 as next digit of the result. 
Result so far: 40083.342
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.

Step 11:
105 goes into 900 8 times with a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 40083.3428
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.

Advancing to step 12:
600 divided by 105 is 5 with a remainder of 75.
The next digit of our result is 5. 
Result so far: 40083.34285
If we take 525 away from 600, we end up 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.

On to step 13:
The number 105 fits into 750 7 times, leaving a remainder of 15.
Record the quotient 7 as the next digit in the result. 
Result so far: 40083.342857
Subtracting 735 from 750 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 14:
If we divide 150 by 105, we get 1 and a remainder of 45.
The next digit of our result is 1. 
Result so far: 40083.3428571
If we take 105 away from 150, we end up 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 15:
450 divided by 105 is 4 with a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 40083.34285714
If we take 420 away from 450, we end up 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.

Our division results in 40083.34285714 with a remaining 3e-08.