We look at the division of 397158 by 155 
Our goal is to divide 397158 by 155.

Moving on to step 1:
The number 155 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 155

Step 2:
If we divide 39 by 155, we get 0 and a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Grab the next digit (7) from the dividend, add it to 39, then carry on: 397 / 155

Advancing to step 3:
155 can be fit into 397 2 times, resulting in a remainder of 87.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 310 from 397, we get 87.
Append the next digit (1) from the dividend to 87 and continue with: 871 / 155

Let's proceed to step 4:
155 goes into 871 5 times with a remainder of 96.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we take 775 away from 871, we end up with 96.
Append the next digit (5) from the dividend to 96 and continue with: 965 / 155

On to step 5:
If we divide 965 by 155, we get 6 and a remainder of 35.
Record the quotient 6 as the next digit in the result. 
Result so far: 256.0
If we subtract 930 from 965, we get 35.
Append the next digit (8) from the dividend to 35 and continue with: 358 / 155

Going ahead to step 6:
358 divided by 155 is 2 with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 2562.0
Subtract 310 from 358 to get 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 7:
If we divide 480 by 155, we get 3 and a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 2562.3
If we subtract 465 from 480, 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.

Let's proceed to step 8:
If we divide 150 by 155, we get 0 and a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 2562.3
The remainder is 150 after subtracting 0 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 9:
155 goes into 1500 9 times with a remainder of 105.
Put 9 as the next digit of the answer. 
Result so far: 2562.309
Deduct 1395 from 1500 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Step 10:
If we divide 1050 by 155, we get 6 and a remainder of 120.
Put 6 as the next digit of the answer. 
Result so far: 2562.3096
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.

Moving on to step 11:
The number 155 fits into 1200 7 times, leaving a remainder of 115.
The number 7 becomes the next digit in our result. 
Result so far: 2562.30967
Deduct 1085 from 1200 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 12:
The number 155 fits into 1150 7 times, leaving a remainder of 65.
Write down 7 as next digit of the result. 
Result so far: 2562.309677
If we subtract 1085 from 1150, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 2562.309677 with a remainder of 6.5e-06.