We're dividing 319749 by 3 
We want to divide 319749 by 3.

Step 1:
The number 3 fits into 3 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 3 from 3 and we're left with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 3

Advancing to step 2:
1 divided by 3 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 1 to get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 3

Advancing to step 3:
3 goes into 19 6 times with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 106.0
If we subtract 18 from 19, we get 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 3

On to step 4:
When dividing 17 by 3, we get 5 with a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 1065.0
If we subtract 15 from 17, we get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 3

Going ahead to step 5:
3 goes into 24 8 times with a remainder of 0.
The next digit of our result is 8. 
Result so far: 10658.0
Deduct 24 from 24 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 3

Advancing to step 6:
When dividing 9 by 3, we get 3 with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 106583.0
If we subtract 9 from 9, 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.

Advancing to step 7:
3 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 106583.0
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.

Going ahead to step 8:
The number 3 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 106583.0
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.

Our division results in 106583.0 with a remaining 0.0.