4350640 ÷ 154 
Our goal is to divide 4350640 by 154.

Step 1:
When dividing 4 by 154, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 154

Advancing to step 2:
When dividing 43 by 154, we get 0 with a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Grab the next digit (5) from the dividend, add it to 43, then carry on: 435 / 154

Step 3:
If we divide 435 by 154, we get 2 and a remainder of 127.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 127 after subtracting 308 from 435.
Append the next digit (0) from the dividend to 127 and continue with: 1270 / 154

Going ahead to step 4:
154 can be fit into 1270 8 times, resulting in a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 28.0
The remainder is 38 after subtracting 1232 from 1270.
Bring next digit (6) of the dividend behind the 38 and repeat the process: 386 / 154

Advancing to step 5:
154 can be fit into 386 2 times, resulting in a remainder of 78.
The next digit of our result is 2. 
Result so far: 282.0
If we take 308 away from 386, we end up with 78.
Append the next digit (4) from the dividend to 78 and continue with: 784 / 154

Advancing to step 6:
The number 154 fits into 784 5 times, leaving a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 2825.0
Deduct 770 from 784 and we're left with 14.
Bring next digit (0) of the dividend behind the 14 and repeat the process: 140 / 154

Let's proceed to step 7:
154 can be fit into 140 0 times, resulting in a remainder of 140.
Record the quotient 0 as the next digit in the result. 
Result so far: 28250.0
Subtracting 0 from 140 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 8:
1400 divided by 154 is 9 with a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 28250.9
The remainder is 14 after subtracting 1386 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 9:
154 can be fit into 140 0 times, resulting in a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 28250.9
Subtract 0 from 140 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 10:
If we divide 1400 by 154, we get 9 and a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 28250.909
Subtracting 1386 from 1400 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 11:
When dividing 140 by 154, we get 0 with a remainder of 140.
Write down 0 as next digit of the result. 
Result so far: 28250.909
Subtract 0 from 140 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 12:
If we divide 1400 by 154, we get 9 and a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 28250.90909
Deduct 1386 from 1400 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 13:
If we divide 140 by 154, we get 0 and a remainder of 140.
Record the quotient 0 as the next digit in the result. 
Result so far: 28250.90909
Subtracting 0 from 140 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 14:
1400 divided by 154 is 9 with a remainder of 14.
Write down 9 as next digit of the result. 
Result so far: 28250.9090909
Subtract 1386 from 1400 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 15:
When dividing 140 by 154, we get 0 with a remainder of 140.
Record the quotient 0 as the next digit in the result. 
Result so far: 28250.9090909
Subtracting 0 from 140 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 28250.9090909 with a remaining 1.4e-07.