We look at the division of 42577924 by 155 
We're looking to find how many times 155 goes into 42577924.

Step 1:
155 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 155

Going ahead to step 2:
42 divided by 155 is 0 with a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 155

Advancing to step 3:
425 divided by 155 is 2 with a remainder of 115.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 310 from 425 to get 115.
Include the next digit (7) from the dividend after 115, then repeat: 1157 / 155

Advancing to step 4:
155 can be fit into 1157 7 times, resulting in a remainder of 72.
Put 7 as the next digit of the answer. 
Result so far: 27.0
The remainder is 72 after subtracting 1085 from 1157.
Include the next digit (7) from the dividend after 72, then repeat: 727 / 155

On to step 5:
727 divided by 155 is 4 with a remainder of 107.
Put 4 as the next digit of the answer. 
Result so far: 274.0
If we subtract 620 from 727, we get 107.
Append the next digit (9) from the dividend to 107 and continue with: 1079 / 155

Step 6:
155 can be fit into 1079 6 times, resulting in a remainder of 149.
Record the quotient 6 as the next digit in the result. 
Result so far: 2746.0
The remainder is 149 after subtracting 930 from 1079.
Fetch the next digit (2) from the dividend, attach it to 149 and continue: 1492 / 155

Step 7:
1492 divided by 155 is 9 with a remainder of 97.
Write down 9 as next digit of the result. 
Result so far: 27469.0
The remainder is 97 after subtracting 1395 from 1492.
Fetch the next digit (4) from the dividend, attach it to 97 and continue: 974 / 155

Step 8:
974 divided by 155 is 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 274696.0
Subtracting 930 from 974 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 9:
When dividing 440 by 155, we get 2 with a remainder of 130.
Put 2 as the next digit of the answer. 
Result so far: 274696.2
Deduct 310 from 440 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 10:
The number 155 fits into 1300 8 times, leaving a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 274696.28
Subtracting 1240 from 1300 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 11:
600 divided by 155 is 3 with a remainder of 135.
The next digit of our result is 3. 
Result so far: 274696.283
Subtracting 465 from 600 leaves us with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Let's proceed to step 12:
If we divide 1350 by 155, we get 8 and a remainder of 110.
Put 8 as the next digit of the answer. 
Result so far: 274696.2838
Subtracting 1240 from 1350 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 13:
When dividing 1100 by 155, we get 7 with a remainder of 15.
The next digit of our result is 7. 
Result so far: 274696.28387
If we subtract 1085 from 1100, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 14:
If we divide 150 by 155, we get 0 and a remainder of 150.
Use 0 as the next digit of our solution. 
Result so far: 274696.28387
Deduct 0 from 150 and we're left 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.

Step 15:
155 can be fit into 1500 9 times, resulting in a remainder of 105.
Use 9 as the next digit of our solution. 
Result so far: 274696.2838709
Subtract 1395 from 1500 to get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 16:
155 goes into 1050 6 times with a remainder of 120.
The next digit of our result is 6. 
Result so far: 274696.28387096
If we take 930 away from 1050, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

After the division, we end up with 274696.28387096 and a remainder of 1.2e-07.