7821937 ÷ 305 
We want to figure out the number of times 7821937 can be divided by 305.

On to step 1:
When dividing 7 by 305, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 305

Going ahead to step 2:
If we divide 78 by 305, we get 0 and a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Fetch the next digit (2) from the dividend, attach it to 78 and continue: 782 / 305

Advancing to step 3:
The number 305 fits into 782 2 times, leaving a remainder of 172.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 172 after subtracting 610 from 782.
Take the next digit (1) from the dividend and append it to 172, then repeat: 1721 / 305

Going ahead to step 4:
1721 divided by 305 is 5 with a remainder of 196.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we take 1525 away from 1721, we end up with 196.
Bring next digit (9) of the dividend behind the 196 and repeat the process: 1969 / 305

Advancing to step 5:
When dividing 1969 by 305, we get 6 with a remainder of 139.
Record the quotient 6 as the next digit in the result. 
Result so far: 256.0
If we subtract 1830 from 1969, we get 139.
Bring next digit (3) of the dividend behind the 139 and repeat the process: 1393 / 305

On to step 6:
305 goes into 1393 4 times with a remainder of 173.
Use 4 as the next digit of our solution. 
Result so far: 2564.0
The remainder is 173 after subtracting 1220 from 1393.
Bring next digit (7) of the dividend behind the 173 and repeat the process: 1737 / 305

Going ahead to step 7:
The number 305 fits into 1737 5 times, leaving a remainder of 212.
Write down 5 as next digit of the result. 
Result so far: 25645.0
Deduct 1525 from 1737 and we're left with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Going ahead to step 8:
When dividing 2120 by 305, we get 6 with a remainder of 290.
Record the quotient 6 as the next digit in the result. 
Result so far: 25645.6
Subtract 1830 from 2120 to get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Let's proceed to step 9:
2900 divided by 305 is 9 with a remainder of 155.
Use 9 as the next digit of our solution. 
Result so far: 25645.69
If we take 2745 away from 2900, we end up with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Step 10:
The number 305 fits into 1550 5 times, leaving a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 25645.695
Deduct 1525 from 1550 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 11:
305 can be fit into 250 0 times, resulting in a remainder of 250.
The next digit of our result is 0. 
Result so far: 25645.695
Deduct 0 from 250 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 12:
If we divide 2500 by 305, we get 8 and a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 25645.69508
If we take 2440 away from 2500, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 13:
If we divide 600 by 305, we get 1 and a remainder of 295.
Put 1 as the next digit of the answer. 
Result so far: 25645.695081
The remainder is 295 after subtracting 305 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

On to step 14:
When dividing 2950 by 305, we get 9 with a remainder of 205.
The next digit of our result is 9. 
Result so far: 25645.6950819
Subtracting 2745 from 2950 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 15:
305 can be fit into 2050 6 times, resulting in a remainder of 220.
Put 6 as the next digit of the answer. 
Result so far: 25645.69508196
Subtracting 1830 from 2050 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

After the division, we end up with 25645.69508196 and a remainder of 2.2e-07.