Let's divide 78305919 by 421
Let's see how many times 421 fits into 78305919.

Going ahead to step 1:
The number 421 fits into 7 0 times, leaving 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.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 421

Step 2:
If we divide 78 by 421, we get 0 and a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Take the next digit (3) from the dividend and append it to 78, then repeat: 783 / 421

Let's proceed to step 3:
421 goes into 783 1 times with a remainder of 362.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 421 from 783 to get 362.
Include the next digit (0) from the dividend after 362, then repeat: 3620 / 421

Moving on to step 4:
The number 421 fits into 3620 8 times, leaving a remainder of 252.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we subtract 3368 from 3620, we get 252.
Append the next digit (5) from the dividend to 252 and continue with: 2525 / 421

On to step 5:
421 can be fit into 2525 5 times, resulting in a remainder of 420.
The number 5 becomes the next digit in our result. 
Result so far: 185.0
Subtract 2105 from 2525 to get 420.
Take the next digit (9) from the dividend and append it to 420, then repeat: 4209 / 421

Advancing to step 6:
421 goes into 4209 9 times with a remainder of 420.
The next digit of our result is 9. 
Result so far: 1859.0
Deduct 3789 from 4209 and we're left with 420.
Bring next digit (1) of the dividend behind the 420 and repeat the process: 4201 / 421

Let's proceed to step 7:
The number 421 fits into 4201 9 times, leaving a remainder of 412.
The next digit of our result is 9. 
Result so far: 18599.0
Subtracting 3789 from 4201 leaves us with 412.
Include the next digit (9) from the dividend after 412, then repeat: 4129 / 421

Advancing to step 8:
4129 divided by 421 is 9 with a remainder of 340.
Put 9 as the next digit of the answer. 
Result so far: 185999.0
Subtracting 3789 from 4129 leaves us 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.

Let's proceed to step 9:
The number 421 fits into 3400 8 times, leaving a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 185999.8
If we take 3368 away from 3400, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 10:
The number 421 fits into 320 0 times, leaving a remainder of 320.
Record the quotient 0 as the next digit in the result. 
Result so far: 185999.8
The remainder is 320 after subtracting 0 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 11:
421 goes into 3200 7 times with a remainder of 253.
Put 7 as the next digit of the answer. 
Result so far: 185999.807
Subtract 2947 from 3200 to get 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Going ahead to step 12:
The number 421 fits into 2530 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 185999.8076
If we subtract 2526 from 2530, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 13:
When dividing 40 by 421, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 185999.8076
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
When dividing 400 by 421, we get 0 with a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 185999.8076
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

In conclusion, the division gives 185999.8076 with a balance of 4e-05.