We're dividing 97784421 by 399 
We want to figure out the number of times 97784421 can be divided by 399.

Advancing to step 1:
399 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 399

On to step 2:
The number 399 fits into 97 0 times, leaving a remainder of 97.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 97, we get 97.
Append the next digit (7) from the dividend to 97 and continue with: 977 / 399

On to step 3:
399 can be fit into 977 2 times, resulting in a remainder of 179.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 798 from 977, we get 179.
Fetch the next digit (8) from the dividend, attach it to 179 and continue: 1798 / 399

On to step 4:
399 can be fit into 1798 4 times, resulting in a remainder of 202.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Subtract 1596 from 1798 to get 202.
Bring next digit (4) of the dividend behind the 202 and repeat the process: 2024 / 399

Going ahead to step 5:
When dividing 2024 by 399, we get 5 with a remainder of 29.
Write down 5 as next digit of the result. 
Result so far: 245.0
Subtracting 1995 from 2024 leaves us with 29.
Take the next digit (4) from the dividend and append it to 29, then repeat: 294 / 399

Let's proceed to step 6:
294 divided by 399 is 0 with a remainder of 294.
Record the quotient 0 as the next digit in the result. 
Result so far: 2450.0
Deduct 0 from 294 and we're left with 294.
Fetch the next digit (2) from the dividend, attach it to 294 and continue: 2942 / 399

Advancing to step 7:
If we divide 2942 by 399, we get 7 and a remainder of 149.
The number 7 becomes the next digit in our result. 
Result so far: 24507.0
Deduct 2793 from 2942 and we're left with 149.
Take the next digit (1) from the dividend and append it to 149, then repeat: 1491 / 399

Going ahead to step 8:
The number 399 fits into 1491 3 times, leaving a remainder of 294.
The number 3 becomes the next digit in our result. 
Result so far: 245073.0
If we take 1197 away from 1491, we end up with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

On to step 9:
The number 399 fits into 2940 7 times, leaving a remainder of 147.
Record the quotient 7 as the next digit in the result. 
Result so far: 245073.7
Deduct 2793 from 2940 and we're left with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Going ahead to step 10:
1470 divided by 399 is 3 with a remainder of 273.
Record the quotient 3 as the next digit in the result. 
Result so far: 245073.73
Subtract 1197 from 1470 to get 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

Moving on to step 11:
399 goes into 2730 6 times with a remainder of 336.
Write down 6 as next digit of the result. 
Result so far: 245073.736
If we subtract 2394 from 2730, we get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Moving on to step 12:
If we divide 3360 by 399, we get 8 and a remainder of 168.
The next digit of our result is 8. 
Result so far: 245073.7368
Subtracting 3192 from 3360 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Advancing to step 13:
If we divide 1680 by 399, we get 4 and a remainder of 84.
Use 4 as the next digit of our solution. 
Result so far: 245073.73684
Subtracting 1596 from 1680 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 14:
When dividing 840 by 399, we get 2 with a remainder of 42.
Put 2 as the next digit of the answer. 
Result so far: 245073.736842
Subtract 798 from 840 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 15:
399 can be fit into 420 1 times, resulting in a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 245073.7368421
If we subtract 399 from 420, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 16:
399 can be fit into 210 0 times, resulting in a remainder of 210.
The number 0 becomes the next digit in our result. 
Result so far: 245073.7368421
If we take 0 away from 210, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The quotient of the division is 245073.7368421, and the remainder is 2.1e-07.