66190109 divided by 270 
We want to figure out the number of times 66190109 can be divided by 270.

Moving on to step 1:
The number 270 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 270

Advancing to step 2:
66 divided by 270 is 0 with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Fetch the next digit (1) from the dividend, attach it to 66 and continue: 661 / 270

Moving on to step 3:
If we divide 661 by 270, we get 2 and a remainder of 121.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 540 from 661 leaves us with 121.
Bring next digit (9) of the dividend behind the 121 and repeat the process: 1219 / 270

Going ahead to step 4:
1219 divided by 270 is 4 with a remainder of 139.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtract 1080 from 1219 to get 139.
Bring next digit (0) of the dividend behind the 139 and repeat the process: 1390 / 270

Step 5:
The number 270 fits into 1390 5 times, leaving a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 245.0
Subtracting 1350 from 1390 leaves us with 40.
Append the next digit (1) from the dividend to 40 and continue with: 401 / 270

Advancing to step 6:
401 divided by 270 is 1 with a remainder of 131.
Put 1 as the next digit of the answer. 
Result so far: 2451.0
Subtract 270 from 401 to get 131.
Take the next digit (0) from the dividend and append it to 131, then repeat: 1310 / 270

Going ahead to step 7:
1310 divided by 270 is 4 with a remainder of 230.
Use 4 as the next digit of our solution. 
Result so far: 24514.0
If we subtract 1080 from 1310, we get 230.
Grab the next digit (9) from the dividend, add it to 230, then carry on: 2309 / 270

Step 8:
270 goes into 2309 8 times with a remainder of 149.
Record the quotient 8 as the next digit in the result. 
Result so far: 245148.0
Subtract 2160 from 2309 to get 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Step 9:
270 can be fit into 1490 5 times, resulting in a remainder of 140.
Use 5 as the next digit of our solution. 
Result so far: 245148.5
If we subtract 1350 from 1490, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Advancing to step 10:
The number 270 fits into 1400 5 times, leaving a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 245148.55
If we subtract 1350 from 1400, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 245148.55, with a leftover of 0.05.