321861 ÷ 77 
We're looking to find how many times 77 goes into 321861.

Advancing to step 1:
77 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 77

On to step 2:
When dividing 32 by 77, we get 0 with a remainder of 32.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 32, we get 32.
Take the next digit (1) from the dividend and append it to 32, then repeat: 321 / 77

Advancing to step 3:
The number 77 fits into 321 4 times, leaving a remainder of 13.
The next digit of our result is 4. 
Result so far: 4.0
If we take 308 away from 321, we end up with 13.
Append the next digit (8) from the dividend to 13 and continue with: 138 / 77

Step 4:
77 can be fit into 138 1 times, resulting in a remainder of 61.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
If we take 77 away from 138, we end up with 61.
Fetch the next digit (6) from the dividend, attach it to 61 and continue: 616 / 77

Step 5:
77 can be fit into 616 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 418.0
If we take 616 away from 616, we end up with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 77

Moving on to step 6:
77 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 4180.0
Deduct 0 from 1 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
The number 77 fits into 10 0 times, leaving a remainder of 10.
The next digit of our result is 0. 
Result so far: 4180.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
If we divide 100 by 77, we get 1 and a remainder of 23.
The next digit of our result is 1. 
Result so far: 4180.01
If we take 77 away from 100, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 9:
The number 77 fits into 230 2 times, leaving a remainder of 76.
Write down 2 as next digit of the result. 
Result so far: 4180.012
The remainder is 76 after subtracting 154 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 10:
77 goes into 760 9 times with a remainder of 67.
The next digit of our result is 9. 
Result so far: 4180.0129
Deduct 693 from 760 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 11:
77 goes into 670 8 times with a remainder of 54.
Put 8 as the next digit of the answer. 
Result so far: 4180.01298
Deduct 616 from 670 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 12:
77 goes into 540 7 times with a remainder of 1.
The next digit of our result is 7. 
Result so far: 4180.012987
Subtracting 539 from 540 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 13:
10 divided by 77 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 4180.012987
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 14:
77 goes into 100 1 times with a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 4180.01298701
The remainder is 23 after subtracting 77 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final outcome is 4180.01298701, with a leftover of 2.3e-08.