153449 ÷ 7 
Our goal is to divide 153449 by 7.

Let's proceed to step 1:
7 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 7

Going ahead to step 2:
7 can be fit into 15 2 times, resulting in a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 14 away from 15, we end up with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 7

Moving on to step 3:
If we divide 13 by 7, we get 1 and a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 21.0
The remainder is 6 after subtracting 7 from 13.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 7

Step 4:
The number 7 fits into 64 9 times, leaving a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 219.0
If we subtract 63 from 64, we get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 7

Let's proceed to step 5:
The number 7 fits into 14 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2192.0
If we subtract 14 from 14, we get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 7

Going ahead to step 6:
7 can be fit into 9 1 times, resulting in a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 21921.0
Subtracting 7 from 9 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
7 can be fit into 20 2 times, resulting in a remainder of 6.
The next digit of our result is 2. 
Result so far: 21921.2
Deduct 14 from 20 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
7 goes into 60 8 times with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 21921.28
Subtracting 56 from 60 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
7 can be fit into 40 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 21921.285
If we subtract 35 from 40, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 10:
7 goes into 50 7 times with a remainder of 1.
The next digit of our result is 7. 
Result so far: 21921.2857
Subtract 49 from 50 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.

Step 11:
The number 7 fits into 10 1 times, leaving a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 21921.28571
Subtract 7 from 10 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 12:
If we divide 30 by 7, we get 4 and a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 21921.285714
If we subtract 28 from 30, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 13:
7 can be fit into 20 2 times, resulting in a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 21921.2857142
Subtract 14 from 20 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 14:
If we divide 60 by 7, we get 8 and a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 21921.28571428
Subtract 56 from 60 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 21921.28571428 with a remaining 4e-09.