We're dividing 3425668 by 861 
Let's see how many times 861 fits into 3425668.

Going ahead to step 1:
861 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 861

Step 2:
The number 861 fits into 34 0 times, leaving a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 34, we get 34.
Fetch the next digit (2) from the dividend, attach it to 34 and continue: 342 / 861

Advancing to step 3:
If we divide 342 by 861, we get 0 and a remainder of 342.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 342, we get 342.
Include the next digit (5) from the dividend after 342, then repeat: 3425 / 861

Moving on to step 4:
The number 861 fits into 3425 3 times, leaving a remainder of 842.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 2583 from 3425, we get 842.
Include the next digit (6) from the dividend after 842, then repeat: 8426 / 861

Let's proceed to step 5:
If we divide 8426 by 861, we get 9 and a remainder of 677.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
If we subtract 7749 from 8426, we get 677.
Fetch the next digit (6) from the dividend, attach it to 677 and continue: 6776 / 861

Advancing to step 6:
861 can be fit into 6776 7 times, resulting in a remainder of 749.
Use 7 as the next digit of our solution. 
Result so far: 397.0
Subtracting 6027 from 6776 leaves us with 749.
Grab the next digit (8) from the dividend, add it to 749, then carry on: 7498 / 861

Let's proceed to step 7:
7498 divided by 861 is 8 with a remainder of 610.
The next digit of our result is 8. 
Result so far: 3978.0
If we subtract 6888 from 7498, we get 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Moving on to step 8:
If we divide 6100 by 861, we get 7 and a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 3978.7
Subtracting 6027 from 6100 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 9:
861 goes into 730 0 times with a remainder of 730.
The next digit of our result is 0. 
Result so far: 3978.7
If we subtract 0 from 730, we get 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Advancing to step 10:
The number 861 fits into 7300 8 times, leaving a remainder of 412.
The number 8 becomes the next digit in our result. 
Result so far: 3978.708
If we take 6888 away from 7300, we end up with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

On to step 11:
When dividing 4120 by 861, we get 4 with a remainder of 676.
Put 4 as the next digit of the answer. 
Result so far: 3978.7084
If we take 3444 away from 4120, we end up with 676.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6760, and continue the process.

Going ahead to step 12:
When dividing 6760 by 861, we get 7 with a remainder of 733.
The number 7 becomes the next digit in our result. 
Result so far: 3978.70847
Deduct 6027 from 6760 and we're left with 733.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7330, and continue the process.

Going ahead to step 13:
When dividing 7330 by 861, we get 8 with a remainder of 442.
Record the quotient 8 as the next digit in the result. 
Result so far: 3978.708478
Deduct 6888 from 7330 and we're left with 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Going ahead to step 14:
861 goes into 4420 5 times with a remainder of 115.
Put 5 as the next digit of the answer. 
Result so far: 3978.7084785
Subtract 4305 from 4420 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.

Advancing to step 15:
If we divide 1150 by 861, we get 1 and a remainder of 289.
The next digit of our result is 1. 
Result so far: 3978.70847851
The remainder is 289 after subtracting 861 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

In conclusion, the division gives 3978.70847851 with a balance of 2.89e-07.