25491742 ÷ 321 
We want to figure out the number of times 25491742 can be divided by 321.

Moving on to step 1:
If we divide 2 by 321, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 321

Advancing to step 2:
The number 321 fits into 25 0 times, leaving a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Include the next digit (4) from the dividend after 25, then repeat: 254 / 321

Let's proceed to step 3:
321 can be fit into 254 0 times, resulting in a remainder of 254.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 254 after subtracting 0 from 254.
Append the next digit (9) from the dividend to 254 and continue with: 2549 / 321

Moving on to step 4:
If we divide 2549 by 321, we get 7 and a remainder of 302.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 2247 from 2549 leaves us with 302.
Include the next digit (1) from the dividend after 302, then repeat: 3021 / 321

Advancing to step 5:
If we divide 3021 by 321, we get 9 and a remainder of 132.
The number 9 becomes the next digit in our result. 
Result so far: 79.0
Subtract 2889 from 3021 to get 132.
Fetch the next digit (7) from the dividend, attach it to 132 and continue: 1327 / 321

Going ahead to step 6:
321 can be fit into 1327 4 times, resulting in a remainder of 43.
Write down 4 as next digit of the result. 
Result so far: 794.0
If we subtract 1284 from 1327, we get 43.
Include the next digit (4) from the dividend after 43, then repeat: 434 / 321

Moving on to step 7:
When dividing 434 by 321, we get 1 with a remainder of 113.
The next digit of our result is 1. 
Result so far: 7941.0
If we take 321 away from 434, we end up with 113.
Append the next digit (2) from the dividend to 113 and continue with: 1132 / 321

Step 8:
321 can be fit into 1132 3 times, resulting in a remainder of 169.
Use 3 as the next digit of our solution. 
Result so far: 79413.0
Subtract 963 from 1132 to get 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Advancing to step 9:
The number 321 fits into 1690 5 times, leaving a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 79413.5
Deduct 1605 from 1690 and we're left with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 10:
The number 321 fits into 850 2 times, leaving a remainder of 208.
Record the quotient 2 as the next digit in the result. 
Result so far: 79413.52
Subtracting 642 from 850 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Step 11:
321 goes into 2080 6 times with a remainder of 154.
Write down 6 as next digit of the result. 
Result so far: 79413.526
Subtract 1926 from 2080 to get 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Advancing to step 12:
1540 divided by 321 is 4 with a remainder of 256.
The next digit of our result is 4. 
Result so far: 79413.5264
Subtract 1284 from 1540 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Step 13:
If we divide 2560 by 321, we get 7 and a remainder of 313.
Write down 7 as next digit of the result. 
Result so far: 79413.52647
If we subtract 2247 from 2560, we get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Moving on to step 14:
321 can be fit into 3130 9 times, resulting in a remainder of 241.
Write down 9 as next digit of the result. 
Result so far: 79413.526479
If we take 2889 away from 3130, we end up with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

On to step 15:
2410 divided by 321 is 7 with a remainder of 163.
Write down 7 as next digit of the result. 
Result so far: 79413.5264797
The remainder is 163 after subtracting 2247 from 2410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Advancing to step 16:
1630 divided by 321 is 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 79413.52647975
Subtracting 1605 from 1630 leaves us 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.

Our division results in 79413.52647975 with a remaining 2.5e-08.