Let's divide 99642901 by 280
We're looking to find how many times 280 goes into 99642901.

Advancing to step 1:
280 goes into 9 0 times with 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.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 280

On to step 2:
The number 280 fits into 99 0 times, leaving a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Take the next digit (6) from the dividend and append it to 99, then repeat: 996 / 280

Going ahead to step 3:
280 goes into 996 3 times with a remainder of 156.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 840 from 996 to get 156.
Take the next digit (4) from the dividend and append it to 156, then repeat: 1564 / 280

On to step 4:
The number 280 fits into 1564 5 times, leaving a remainder of 164.
Put 5 as the next digit of the answer. 
Result so far: 35.0
Deduct 1400 from 1564 and we're left with 164.
Append the next digit (2) from the dividend to 164 and continue with: 1642 / 280

On to step 5:
280 can be fit into 1642 5 times, resulting in a remainder of 242.
Put 5 as the next digit of the answer. 
Result so far: 355.0
Subtract 1400 from 1642 to get 242.
Bring next digit (9) of the dividend behind the 242 and repeat the process: 2429 / 280

On to step 6:
2429 divided by 280 is 8 with a remainder of 189.
The next digit of our result is 8. 
Result so far: 3558.0
If we take 2240 away from 2429, we end up with 189.
Bring next digit (0) of the dividend behind the 189 and repeat the process: 1890 / 280

Advancing to step 7:
The number 280 fits into 1890 6 times, leaving a remainder of 210.
Record the quotient 6 as the next digit in the result. 
Result so far: 35586.0
The remainder is 210 after subtracting 1680 from 1890.
Append the next digit (1) from the dividend to 210 and continue with: 2101 / 280

Step 8:
When dividing 2101 by 280, we get 7 with a remainder of 141.
Put 7 as the next digit of the answer. 
Result so far: 355867.0
If we take 1960 away from 2101, we end up with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

On to step 9:
1410 divided by 280 is 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 355867.5
Subtracting 1400 from 1410 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
If we divide 100 by 280, we get 0 and a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 355867.5
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 11:
The number 280 fits into 1000 3 times, leaving a remainder of 160.
The next digit of our result is 3. 
Result so far: 355867.503
Subtracting 840 from 1000 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 12:
280 goes into 1600 5 times with a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 355867.5035
If we subtract 1400 from 1600, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 13:
The number 280 fits into 2000 7 times, leaving a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 355867.50357
Subtract 1960 from 2000 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 14:
The number 280 fits into 400 1 times, leaving a remainder of 120.
Record the quotient 1 as the next digit in the result. 
Result so far: 355867.503571
The remainder is 120 after subtracting 280 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 15:
280 goes into 1200 4 times with a remainder of 80.
Record the quotient 4 as the next digit in the result. 
Result so far: 355867.5035714
If we subtract 1120 from 1200, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 16:
When dividing 800 by 280, we get 2 with a remainder of 240.
Record the quotient 2 as the next digit in the result. 
Result so far: 355867.50357142
If we take 560 away from 800, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

After the division, we end up with 355867.50357142 and a remainder of 2.4e-07.