748951 divided by 3 
Our goal is to divide 748951 by 3.

Advancing to step 1:
If we divide 7 by 3, we get 2 and a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 6 away from 7, we end up with 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 3

Advancing to step 2:
3 can be fit into 14 4 times, resulting in a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 24.0
If we take 12 away from 14, we end up with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 3

Let's proceed to step 3:
3 goes into 28 9 times with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 249.0
If we subtract 27 from 28, we get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 3

Let's proceed to step 4:
19 divided by 3 is 6 with a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 2496.0
Deduct 18 from 19 and we're left with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 3

On to step 5:
3 goes into 15 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 24965.0
If we take 15 away from 15, we end up with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 3

Step 6:
If we divide 1 by 3, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 249650.0
Subtract 0 from 1 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
3 goes into 10 3 times with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 249650.3
If we subtract 9 from 10, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 8:
10 divided by 3 is 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 249650.33
Deduct 9 from 10 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 249650.33 with a remaining 0.001.