66090418 ÷ 278 
Our goal is to divide 66090418 by 278.

Going ahead to step 1:
When dividing 6 by 278, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 278

Step 2:
When dividing 66 by 278, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Include the next digit (0) from the dividend after 66, then repeat: 660 / 278

Let's proceed to step 3:
660 divided by 278 is 2 with a remainder of 104.
The next digit of our result is 2. 
Result so far: 2.0
If we take 556 away from 660, we end up with 104.
Fetch the next digit (9) from the dividend, attach it to 104 and continue: 1049 / 278

Going ahead to step 4:
If we divide 1049 by 278, we get 3 and a remainder of 215.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Deduct 834 from 1049 and we're left with 215.
Bring next digit (0) of the dividend behind the 215 and repeat the process: 2150 / 278

On to step 5:
When dividing 2150 by 278, we get 7 with a remainder of 204.
Put 7 as the next digit of the answer. 
Result so far: 237.0
Subtracting 1946 from 2150 leaves us with 204.
Grab the next digit (4) from the dividend, add it to 204, then carry on: 2044 / 278

Moving on to step 6:
When dividing 2044 by 278, we get 7 with a remainder of 98.
Record the quotient 7 as the next digit in the result. 
Result so far: 2377.0
If we subtract 1946 from 2044, we get 98.
Bring next digit (1) of the dividend behind the 98 and repeat the process: 981 / 278

Step 7:
If we divide 981 by 278, we get 3 and a remainder of 147.
Record the quotient 3 as the next digit in the result. 
Result so far: 23773.0
Subtract 834 from 981 to get 147.
Bring next digit (8) of the dividend behind the 147 and repeat the process: 1478 / 278

Going ahead to step 8:
278 goes into 1478 5 times with a remainder of 88.
The number 5 becomes the next digit in our result. 
Result so far: 237735.0
If we subtract 1390 from 1478, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 9:
If we divide 880 by 278, we get 3 and a remainder of 46.
The next digit of our result is 3. 
Result so far: 237735.3
If we subtract 834 from 880, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 10:
If we divide 460 by 278, we get 1 and a remainder of 182.
The next digit of our result is 1. 
Result so far: 237735.31
If we subtract 278 from 460, we get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Let's proceed to step 11:
278 goes into 1820 6 times with a remainder of 152.
Put 6 as the next digit of the answer. 
Result so far: 237735.316
The remainder is 152 after subtracting 1668 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 12:
The number 278 fits into 1520 5 times, leaving a remainder of 130.
Use 5 as the next digit of our solution. 
Result so far: 237735.3165
Subtracting 1390 from 1520 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 13:
The number 278 fits into 1300 4 times, leaving a remainder of 188.
Use 4 as the next digit of our solution. 
Result so far: 237735.31654
Deduct 1112 from 1300 and we're left with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Moving on to step 14:
When dividing 1880 by 278, we get 6 with a remainder of 212.
The number 6 becomes the next digit in our result. 
Result so far: 237735.316546
The remainder is 212 after subtracting 1668 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Advancing to step 15:
2120 divided by 278 is 7 with a remainder of 174.
Write down 7 as next digit of the result. 
Result so far: 237735.3165467
If we subtract 1946 from 2120, we get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Let's proceed to step 16:
278 goes into 1740 6 times with a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 237735.31654676
If we take 1668 away from 1740, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 237735.31654676 with a remainder of 7.2e-08.