3387313 ÷ 800 
We're looking to find how many times 800 goes into 3387313.

Step 1:
When dividing 3 by 800, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 800

On to step 2:
When dividing 33 by 800, we get 0 with a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 33 and we're left with 33.
Bring next digit (8) of the dividend behind the 33 and repeat the process: 338 / 800

On to step 3:
If we divide 338 by 800, we get 0 and a remainder of 338.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 338 and we're left with 338.
Fetch the next digit (7) from the dividend, attach it to 338 and continue: 3387 / 800

Moving on to step 4:
When dividing 3387 by 800, we get 4 with a remainder of 187.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 3200 from 3387 and we're left with 187.
Include the next digit (3) from the dividend after 187, then repeat: 1873 / 800

Step 5:
When dividing 1873 by 800, we get 2 with a remainder of 273.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Subtracting 1600 from 1873 leaves us with 273.
Fetch the next digit (1) from the dividend, attach it to 273 and continue: 2731 / 800

Step 6:
When dividing 2731 by 800, we get 3 with a remainder of 331.
Use 3 as the next digit of our solution. 
Result so far: 423.0
Deduct 2400 from 2731 and we're left with 331.
Grab the next digit (3) from the dividend, add it to 331, then carry on: 3313 / 800

Advancing to step 7:
3313 divided by 800 is 4 with a remainder of 113.
Use 4 as the next digit of our solution. 
Result so far: 4234.0
If we take 3200 away from 3313, we end up with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Advancing to step 8:
1130 divided by 800 is 1 with a remainder of 330.
Write down 1 as next digit of the result. 
Result so far: 4234.1
Subtracting 800 from 1130 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Moving on to step 9:
If we divide 3300 by 800, we get 4 and a remainder of 100.
Put 4 as the next digit of the answer. 
Result so far: 4234.14
Subtract 3200 from 3300 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 10:
1000 divided by 800 is 1 with a remainder of 200.
Put 1 as the next digit of the answer. 
Result so far: 4234.141
Subtracting 800 from 1000 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 11:
800 goes into 2000 2 times with a remainder of 400.
The next digit of our result is 2. 
Result so far: 4234.1412
Subtract 1600 from 2000 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 12:
800 goes into 4000 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 4234.14125
If we subtract 4000 from 4000, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 13:
0 divided by 800 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4234.14125
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 14:
0 divided by 800 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4234.14125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 4234.14125 with a remaining 0.0.