We look at the division of 3872435 by 397 
Our goal is to divide 3872435 by 397.

Step 1:
3 divided by 397 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 397

Advancing to step 2:
If we divide 38 by 397, we get 0 and a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 38 to get 38.
Append the next digit (7) from the dividend to 38 and continue with: 387 / 397

Let's proceed to step 3:
397 goes into 387 0 times with a remainder of 387.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 387 to get 387.
Bring next digit (2) of the dividend behind the 387 and repeat the process: 3872 / 397

Going ahead to step 4:
When dividing 3872 by 397, we get 9 with a remainder of 299.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 3573 from 3872 to get 299.
Fetch the next digit (4) from the dividend, attach it to 299 and continue: 2994 / 397

Going ahead to step 5:
When dividing 2994 by 397, we get 7 with a remainder of 215.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
If we subtract 2779 from 2994, we get 215.
Bring next digit (3) of the dividend behind the 215 and repeat the process: 2153 / 397

Step 6:
When dividing 2153 by 397, we get 5 with a remainder of 168.
Use 5 as the next digit of our solution. 
Result so far: 975.0
The remainder is 168 after subtracting 1985 from 2153.
Grab the next digit (5) from the dividend, add it to 168, then carry on: 1685 / 397

Let's proceed to step 7:
If we divide 1685 by 397, we get 4 and a remainder of 97.
Put 4 as the next digit of the answer. 
Result so far: 9754.0
Subtracting 1588 from 1685 leaves us with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Going ahead to step 8:
397 can be fit into 970 2 times, resulting in a remainder of 176.
Record the quotient 2 as the next digit in the result. 
Result so far: 9754.2
Subtracting 794 from 970 leaves us with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 9:
The number 397 fits into 1760 4 times, leaving a remainder of 172.
Record the quotient 4 as the next digit in the result. 
Result so far: 9754.24
Subtracting 1588 from 1760 leaves us 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.

Going ahead to step 10:
If we divide 1720 by 397, we get 4 and a remainder of 132.
Use 4 as the next digit of our solution. 
Result so far: 9754.244
If we subtract 1588 from 1720, we get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Our division results in 9754.244 with a remaining 0.0132.