Let's divide 40146642 by 178
Our goal is to divide 40146642 by 178.

Step 1:
The number 178 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 178

Moving on to step 2:
178 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Append the next digit (1) from the dividend to 40 and continue with: 401 / 178

On to step 3:
When dividing 401 by 178, we get 2 with a remainder of 45.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 356 away from 401, we end up with 45.
Include the next digit (4) from the dividend after 45, then repeat: 454 / 178

Step 4:
If we divide 454 by 178, we get 2 and a remainder of 98.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Subtract 356 from 454 to get 98.
Grab the next digit (6) from the dividend, add it to 98, then carry on: 986 / 178

Moving on to step 5:
986 divided by 178 is 5 with a remainder of 96.
Put 5 as the next digit of the answer. 
Result so far: 225.0
If we subtract 890 from 986, we get 96.
Take the next digit (6) from the dividend and append it to 96, then repeat: 966 / 178

Moving on to step 6:
If we divide 966 by 178, we get 5 and a remainder of 76.
The next digit of our result is 5. 
Result so far: 2255.0
Subtract 890 from 966 to get 76.
Grab the next digit (4) from the dividend, add it to 76, then carry on: 764 / 178

Going ahead to step 7:
If we divide 764 by 178, we get 4 and a remainder of 52.
Use 4 as the next digit of our solution. 
Result so far: 22554.0
Subtracting 712 from 764 leaves us with 52.
Include the next digit (2) from the dividend after 52, then repeat: 522 / 178

On to step 8:
The number 178 fits into 522 2 times, leaving a remainder of 166.
Use 2 as the next digit of our solution. 
Result so far: 225542.0
If we subtract 356 from 522, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Let's proceed to step 9:
178 can be fit into 1660 9 times, resulting in a remainder of 58.
Use 9 as the next digit of our solution. 
Result so far: 225542.9
Subtracting 1602 from 1660 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 10:
The number 178 fits into 580 3 times, leaving a remainder of 46.
The next digit of our result is 3. 
Result so far: 225542.93
If we subtract 534 from 580, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 11:
If we divide 460 by 178, we get 2 and a remainder of 104.
The next digit of our result is 2. 
Result so far: 225542.932
If we subtract 356 from 460, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Going ahead to step 12:
1040 divided by 178 is 5 with a remainder of 150.
The next digit of our result is 5. 
Result so far: 225542.9325
Subtracting 890 from 1040 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 13:
178 goes into 1500 8 times with a remainder of 76.
Use 8 as the next digit of our solution. 
Result so far: 225542.93258
If we take 1424 away from 1500, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 14:
760 divided by 178 is 4 with a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 225542.932584
Subtracting 712 from 760 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 15:
When dividing 480 by 178, we get 2 with a remainder of 124.
The next digit of our result is 2. 
Result so far: 225542.9325842
Deduct 356 from 480 and we're left with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 16:
178 can be fit into 1240 6 times, resulting in a remainder of 172.
Write down 6 as next digit of the result. 
Result so far: 225542.93258426
Deduct 1068 from 1240 and we're left with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

The final outcome is 225542.93258426, with a leftover of 1.72e-07.