We divide 78716582 by 421
Let's see how many times 421 fits into 78716582.

Going ahead to step 1:
421 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 421

On to step 2:
421 goes into 78 0 times with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Fetch the next digit (7) from the dividend, attach it to 78 and continue: 787 / 421

Let's proceed to step 3:
If we divide 787 by 421, we get 1 and a remainder of 366.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 421 from 787, we get 366.
Take the next digit (1) from the dividend and append it to 366, then repeat: 3661 / 421

Step 4:
If we divide 3661 by 421, we get 8 and a remainder of 293.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtract 3368 from 3661 to get 293.
Append the next digit (6) from the dividend to 293 and continue with: 2936 / 421

Moving on to step 5:
421 goes into 2936 6 times with a remainder of 410.
Put 6 as the next digit of the answer. 
Result so far: 186.0
Subtract 2526 from 2936 to get 410.
Append the next digit (5) from the dividend to 410 and continue with: 4105 / 421

Going ahead to step 6:
The number 421 fits into 4105 9 times, leaving a remainder of 316.
Use 9 as the next digit of our solution. 
Result so far: 1869.0
If we subtract 3789 from 4105, we get 316.
Include the next digit (8) from the dividend after 316, then repeat: 3168 / 421

Going ahead to step 7:
421 can be fit into 3168 7 times, resulting in a remainder of 221.
Record the quotient 7 as the next digit in the result. 
Result so far: 18697.0
Subtract 2947 from 3168 to get 221.
Grab the next digit (2) from the dividend, add it to 221, then carry on: 2212 / 421

Advancing to step 8:
421 can be fit into 2212 5 times, resulting in a remainder of 107.
The next digit of our result is 5. 
Result so far: 186975.0
If we subtract 2105 from 2212, we get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Moving on to step 9:
If we divide 1070 by 421, we get 2 and a remainder of 228.
Put 2 as the next digit of the answer. 
Result so far: 186975.2
Subtracting 842 from 1070 leaves us with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

On to step 10:
When dividing 2280 by 421, we get 5 with a remainder of 175.
The next digit of our result is 5. 
Result so far: 186975.25
The remainder is 175 after subtracting 2105 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

On to step 11:
If we divide 1750 by 421, we get 4 and a remainder of 66.
The next digit of our result is 4. 
Result so far: 186975.254
Subtracting 1684 from 1750 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 12:
If we divide 660 by 421, we get 1 and a remainder of 239.
The number 1 becomes the next digit in our result. 
Result so far: 186975.2541
Subtract 421 from 660 to get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

On to step 13:
The number 421 fits into 2390 5 times, leaving a remainder of 285.
The next digit of our result is 5. 
Result so far: 186975.25415
If we take 2105 away from 2390, we end up with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Step 14:
When dividing 2850 by 421, we get 6 with a remainder of 324.
The next digit of our result is 6. 
Result so far: 186975.254156
The remainder is 324 after subtracting 2526 from 2850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 15:
421 can be fit into 3240 7 times, resulting in a remainder of 293.
The next digit of our result is 7. 
Result so far: 186975.2541567
Deduct 2947 from 3240 and we're left with 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Advancing to step 16:
421 can be fit into 2930 6 times, resulting in a remainder of 404.
The number 6 becomes the next digit in our result. 
Result so far: 186975.25415676
If we subtract 2526 from 2930, we get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

After the division, we end up with 186975.25415676 and a remainder of 4.04e-07.