3778638 divided by 158 
Let's see how many times 158 fits into 3778638.

Going ahead to step 1:
When dividing 3 by 158, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 158

On to step 2:
The number 158 fits into 37 0 times, leaving a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 37 leaves us with 37.
Append the next digit (7) from the dividend to 37 and continue with: 377 / 158

Let's proceed to step 3:
158 goes into 377 2 times with a remainder of 61.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 316 from 377 leaves us with 61.
Include the next digit (8) from the dividend after 61, then repeat: 618 / 158

Step 4:
When dividing 618 by 158, we get 3 with a remainder of 144.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Deduct 474 from 618 and we're left with 144.
Include the next digit (6) from the dividend after 144, then repeat: 1446 / 158

Moving on to step 5:
158 goes into 1446 9 times with a remainder of 24.
Write down 9 as next digit of the result. 
Result so far: 239.0
The remainder is 24 after subtracting 1422 from 1446.
Include the next digit (3) from the dividend after 24, then repeat: 243 / 158

Going ahead to step 6:
158 can be fit into 243 1 times, resulting in a remainder of 85.
Use 1 as the next digit of our solution. 
Result so far: 2391.0
Deduct 158 from 243 and we're left with 85.
Fetch the next digit (8) from the dividend, attach it to 85 and continue: 858 / 158

On to step 7:
158 can be fit into 858 5 times, resulting in a remainder of 68.
Use 5 as the next digit of our solution. 
Result so far: 23915.0
Deduct 790 from 858 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 8:
If we divide 680 by 158, we get 4 and a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 23915.4
If we take 632 away from 680, we end up 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 9:
158 can be fit into 480 3 times, resulting in a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 23915.43
If we subtract 474 from 480, we 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.

Step 10:
If we divide 60 by 158, we get 0 and a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 23915.43
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
158 can be fit into 600 3 times, resulting in a remainder of 126.
Put 3 as the next digit of the answer. 
Result so far: 23915.4303
Subtracting 474 from 600 leaves us with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 12:
158 can be fit into 1260 7 times, resulting in a remainder of 154.
The next digit of our result is 7. 
Result so far: 23915.43037
If we subtract 1106 from 1260, we get 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Moving on to step 13:
If we divide 1540 by 158, we get 9 and a remainder of 118.
The number 9 becomes the next digit in our result. 
Result so far: 23915.430379
Deduct 1422 from 1540 and we're left with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Advancing to step 14:
The number 158 fits into 1180 7 times, leaving a remainder of 74.
Write down 7 as next digit of the result. 
Result so far: 23915.4303797
Deduct 1106 from 1180 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 15:
158 goes into 740 4 times with a remainder of 108.
Put 4 as the next digit of the answer. 
Result so far: 23915.43037974
Deduct 632 from 740 and we're left with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

The final outcome is 23915.43037974, with a leftover of 1.08e-07.