We're dividing 1229425 by 387 
We want to divide 1229425 by 387.

Moving on to step 1:
387 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 387

On to step 2:
387 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Fetch the next digit (2) from the dividend, attach it to 12 and continue: 122 / 387

Moving on to step 3:
387 can be fit into 122 0 times, resulting in a remainder of 122.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 122 and we're left with 122.
Grab the next digit (9) from the dividend, add it to 122, then carry on: 1229 / 387

On to step 4:
The number 387 fits into 1229 3 times, leaving a remainder of 68.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 1161 from 1229 to get 68.
Fetch the next digit (4) from the dividend, attach it to 68 and continue: 684 / 387

Let's proceed to step 5:
If we divide 684 by 387, we get 1 and a remainder of 297.
The next digit of our result is 1. 
Result so far: 31.0
Subtract 387 from 684 to get 297.
Bring next digit (2) of the dividend behind the 297 and repeat the process: 2972 / 387

Step 6:
2972 divided by 387 is 7 with a remainder of 263.
The number 7 becomes the next digit in our result. 
Result so far: 317.0
If we subtract 2709 from 2972, we get 263.
Bring next digit (5) of the dividend behind the 263 and repeat the process: 2635 / 387

Step 7:
The number 387 fits into 2635 6 times, leaving a remainder of 313.
The number 6 becomes the next digit in our result. 
Result so far: 3176.0
If we subtract 2322 from 2635, we get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Step 8:
387 goes into 3130 8 times with a remainder of 34.
The next digit of our result is 8. 
Result so far: 3176.8
Deduct 3096 from 3130 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 9:
387 goes into 340 0 times with a remainder of 340.
Record the quotient 0 as the next digit in the result. 
Result so far: 3176.8
Deduct 0 from 340 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 10:
The number 387 fits into 3400 8 times, leaving a remainder of 304.
Write down 8 as next digit of the result. 
Result so far: 3176.808
The remainder is 304 after subtracting 3096 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 11:
If we divide 3040 by 387, we get 7 and a remainder of 331.
The next digit of our result is 7. 
Result so far: 3176.8087
Deduct 2709 from 3040 and we're left with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Let's proceed to step 12:
If we divide 3310 by 387, we get 8 and a remainder of 214.
The next digit of our result is 8. 
Result so far: 3176.80878
Deduct 3096 from 3310 and we're left with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Step 13:
387 goes into 2140 5 times with a remainder of 205.
Write down 5 as next digit of the result. 
Result so far: 3176.808785
Deduct 1935 from 2140 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Moving on to step 14:
387 goes into 2050 5 times with a remainder of 115.
Write down 5 as next digit of the result. 
Result so far: 3176.8087855
Subtract 1935 from 2050 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

The quotient of the division is 3176.8087855, and the remainder is 1.15e-06.