We look at the division of 3439359 by 945 
We're looking to find how many times 945 goes into 3439359.

Moving on to step 1:
The number 945 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 945

Step 2:
34 divided by 945 is 0 with a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 34 and we're left with 34.
Bring next digit (3) of the dividend behind the 34 and repeat the process: 343 / 945

On to step 3:
The number 945 fits into 343 0 times, leaving a remainder of 343.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 343 to get 343.
Fetch the next digit (9) from the dividend, attach it to 343 and continue: 3439 / 945

Let's proceed to step 4:
When dividing 3439 by 945, we get 3 with a remainder of 604.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 2835 from 3439 leaves us with 604.
Bring next digit (3) of the dividend behind the 604 and repeat the process: 6043 / 945

Advancing to step 5:
The number 945 fits into 6043 6 times, leaving a remainder of 373.
Write down 6 as next digit of the result. 
Result so far: 36.0
Subtract 5670 from 6043 to get 373.
Bring next digit (5) of the dividend behind the 373 and repeat the process: 3735 / 945

Going ahead to step 6:
945 can be fit into 3735 3 times, resulting in a remainder of 900.
Put 3 as the next digit of the answer. 
Result so far: 363.0
The remainder is 900 after subtracting 2835 from 3735.
Append the next digit (9) from the dividend to 900 and continue with: 9009 / 945

Advancing to step 7:
When dividing 9009 by 945, we get 9 with a remainder of 504.
The next digit of our result is 9. 
Result so far: 3639.0
Subtracting 8505 from 9009 leaves us with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Let's proceed to step 8:
If we divide 5040 by 945, we get 5 and a remainder of 315.
Use 5 as the next digit of our solution. 
Result so far: 3639.5
If we subtract 4725 from 5040, we get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Advancing to step 9:
When dividing 3150 by 945, we get 3 with a remainder of 315.
Use 3 as the next digit of our solution. 
Result so far: 3639.53
Subtract 2835 from 3150 to get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Going ahead to step 10:
945 goes into 3150 3 times with a remainder of 315.
The next digit of our result is 3. 
Result so far: 3639.533
Subtract 2835 from 3150 to get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Our division results in 3639.533 with a remaining 0.0315.