We're dividing 2105433 by 309 
We want to figure out the number of times 2105433 can be divided by 309.

On to step 1:
When dividing 2 by 309, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 309

Moving on to step 2:
309 goes into 21 0 times with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 309

Moving on to step 3:
If we divide 210 by 309, we get 0 and a remainder of 210.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 210 leaves us with 210.
Include the next digit (5) from the dividend after 210, then repeat: 2105 / 309

Going ahead to step 4:
If we divide 2105 by 309, we get 6 and a remainder of 251.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 1854 from 2105 leaves us with 251.
Fetch the next digit (4) from the dividend, attach it to 251 and continue: 2514 / 309

Moving on to step 5:
309 can be fit into 2514 8 times, resulting in a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 68.0
If we take 2472 away from 2514, we end up with 42.
Bring next digit (3) of the dividend behind the 42 and repeat the process: 423 / 309

On to step 6:
309 can be fit into 423 1 times, resulting in a remainder of 114.
Record the quotient 1 as the next digit in the result. 
Result so far: 681.0
Subtract 309 from 423 to get 114.
Grab the next digit (3) from the dividend, add it to 114, then carry on: 1143 / 309

On to step 7:
1143 divided by 309 is 3 with a remainder of 216.
Use 3 as the next digit of our solution. 
Result so far: 6813.0
Subtracting 927 from 1143 leaves us with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Let's proceed to step 8:
309 goes into 2160 6 times with a remainder of 306.
The number 6 becomes the next digit in our result. 
Result so far: 6813.6
If we take 1854 away from 2160, we end up with 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Going ahead to step 9:
3060 divided by 309 is 9 with a remainder of 279.
The next digit of our result is 9. 
Result so far: 6813.69
Subtracting 2781 from 3060 leaves us with 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Moving on to step 10:
If we divide 2790 by 309, we get 9 and a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 6813.699
Deduct 2781 from 2790 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Our division results in 6813.699 with a remaining 0.0009.