18098658 ÷ 280 
We want to figure out the number of times 18098658 can be divided by 280.

Step 1:
280 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 280

On to step 2:
If we divide 18 by 280, we get 0 and a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 18, we get 18.
Fetch the next digit (0) from the dividend, attach it to 18 and continue: 180 / 280

Advancing to step 3:
The number 280 fits into 180 0 times, leaving a remainder of 180.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 180 and we're left with 180.
Bring next digit (9) of the dividend behind the 180 and repeat the process: 1809 / 280

On to step 4:
When dividing 1809 by 280, we get 6 with a remainder of 129.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 129 after subtracting 1680 from 1809.
Fetch the next digit (8) from the dividend, attach it to 129 and continue: 1298 / 280

On to step 5:
When dividing 1298 by 280, we get 4 with a remainder of 178.
Record the quotient 4 as the next digit in the result. 
Result so far: 64.0
If we subtract 1120 from 1298, we get 178.
Grab the next digit (6) from the dividend, add it to 178, then carry on: 1786 / 280

Step 6:
1786 divided by 280 is 6 with a remainder of 106.
The next digit of our result is 6. 
Result so far: 646.0
Subtracting 1680 from 1786 leaves us with 106.
Bring next digit (5) of the dividend behind the 106 and repeat the process: 1065 / 280

Moving on to step 7:
When dividing 1065 by 280, we get 3 with a remainder of 225.
The next digit of our result is 3. 
Result so far: 6463.0
If we subtract 840 from 1065, we get 225.
Take the next digit (8) from the dividend and append it to 225, then repeat: 2258 / 280

Step 8:
280 goes into 2258 8 times with a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 64638.0
Subtracting 2240 from 2258 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 9:
280 can be fit into 180 0 times, resulting in a remainder of 180.
Use 0 as the next digit of our solution. 
Result so far: 64638.0
Subtract 0 from 180 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 10:
If we divide 1800 by 280, we get 6 and a remainder of 120.
Record the quotient 6 as the next digit in the result. 
Result so far: 64638.06
Subtracting 1680 from 1800 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 11:
1200 divided by 280 is 4 with a remainder of 80.
Use 4 as the next digit of our solution. 
Result so far: 64638.064
Subtracting 1120 from 1200 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
When dividing 800 by 280, we get 2 with a remainder of 240.
The number 2 becomes the next digit in our result. 
Result so far: 64638.0642
Subtract 560 from 800 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 13:
280 goes into 2400 8 times with a remainder of 160.
The number 8 becomes the next digit in our result. 
Result so far: 64638.06428
Subtracting 2240 from 2400 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.

Moving on to step 14:
1600 divided by 280 is 5 with a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 64638.064285
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.

Moving on to step 15:
280 goes into 2000 7 times with a remainder of 40.
The next digit of our result is 7. 
Result so far: 64638.0642857
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.

Moving on to step 16:
280 can be fit into 400 1 times, resulting in a remainder of 120.
The next digit of our result is 1. 
Result so far: 64638.06428571
Deduct 280 from 400 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The final outcome is 64638.06428571, with a leftover of 1.2e-07.