75328378 ÷ 861 
We want to divide 75328378 by 861.

Going ahead to step 1:
When dividing 7 by 861, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 861

Moving on to step 2:
861 can be fit into 75 0 times, resulting in a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Take the next digit (3) from the dividend and append it to 75, then repeat: 753 / 861

Moving on to step 3:
753 divided by 861 is 0 with a remainder of 753.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 753 to get 753.
Take the next digit (2) from the dividend and append it to 753, then repeat: 7532 / 861

Advancing to step 4:
If we divide 7532 by 861, we get 8 and a remainder of 644.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 644 after subtracting 6888 from 7532.
Grab the next digit (8) from the dividend, add it to 644, then carry on: 6448 / 861

On to step 5:
861 goes into 6448 7 times with a remainder of 421.
Put 7 as the next digit of the answer. 
Result so far: 87.0
If we subtract 6027 from 6448, we get 421.
Grab the next digit (3) from the dividend, add it to 421, then carry on: 4213 / 861

Moving on to step 6:
When dividing 4213 by 861, we get 4 with a remainder of 769.
The next digit of our result is 4. 
Result so far: 874.0
Subtracting 3444 from 4213 leaves us with 769.
Grab the next digit (7) from the dividend, add it to 769, then carry on: 7697 / 861

Step 7:
861 goes into 7697 8 times with a remainder of 809.
Put 8 as the next digit of the answer. 
Result so far: 8748.0
Subtract 6888 from 7697 to get 809.
Bring next digit (8) of the dividend behind the 809 and repeat the process: 8098 / 861

Advancing to step 8:
When dividing 8098 by 861, we get 9 with a remainder of 349.
Write down 9 as next digit of the result. 
Result so far: 87489.0
The remainder is 349 after subtracting 7749 from 8098.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Going ahead to step 9:
3490 divided by 861 is 4 with a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 87489.4
The remainder is 46 after subtracting 3444 from 3490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 10:
861 goes into 460 0 times with a remainder of 460.
Put 0 as the next digit of the answer. 
Result so far: 87489.4
The remainder is 460 after subtracting 0 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Advancing to step 11:
When dividing 4600 by 861, we get 5 with a remainder of 295.
Record the quotient 5 as the next digit in the result. 
Result so far: 87489.405
Deduct 4305 from 4600 and we're left with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Advancing to step 12:
861 goes into 2950 3 times with a remainder of 367.
Put 3 as the next digit of the answer. 
Result so far: 87489.4053
Deduct 2583 from 2950 and we're left with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Let's proceed to step 13:
The number 861 fits into 3670 4 times, leaving a remainder of 226.
Write down 4 as next digit of the result. 
Result so far: 87489.40534
Subtracting 3444 from 3670 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Step 14:
861 goes into 2260 2 times with a remainder of 538.
The next digit of our result is 2. 
Result so far: 87489.405342
Subtract 1722 from 2260 to get 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Step 15:
When dividing 5380 by 861, we get 6 with a remainder of 214.
Put 6 as the next digit of the answer. 
Result so far: 87489.4053426
If we take 5166 away from 5380, we end up 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.

Let's proceed to step 16:
When dividing 2140 by 861, we get 2 with a remainder of 418.
The number 2 becomes the next digit in our result. 
Result so far: 87489.40534262
The remainder is 418 after subtracting 1722 from 2140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

The final result is 87489.40534262 with a remainder of 4.18e-07.