86426135 ÷ 66 
We want to divide 86426135 by 66.

Step 1:
When dividing 8 by 66, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 66

Let's proceed to step 2:
86 divided by 66 is 1 with a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 66 from 86 and we're left with 20.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 66

Let's proceed to step 3:
204 divided by 66 is 3 with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 198 from 204 to get 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 66

Moving on to step 4:
66 can be fit into 62 0 times, resulting in a remainder of 62.
Record the quotient 0 as the next digit in the result. 
Result so far: 130.0
If we take 0 away from 62, we end up with 62.
Grab the next digit (6) from the dividend, add it to 62, then carry on: 626 / 66

Let's proceed to step 5:
66 can be fit into 626 9 times, resulting in a remainder of 32.
The number 9 becomes the next digit in our result. 
Result so far: 1309.0
Subtracting 594 from 626 leaves us with 32.
Take the next digit (1) from the dividend and append it to 32, then repeat: 321 / 66

Going ahead to step 6:
If we divide 321 by 66, we get 4 and a remainder of 57.
Record the quotient 4 as the next digit in the result. 
Result so far: 13094.0
Subtract 264 from 321 to get 57.
Grab the next digit (3) from the dividend, add it to 57, then carry on: 573 / 66

Let's proceed to step 7:
If we divide 573 by 66, we get 8 and a remainder of 45.
Put 8 as the next digit of the answer. 
Result so far: 130948.0
Subtracting 528 from 573 leaves us with 45.
Grab the next digit (5) from the dividend, add it to 45, then carry on: 455 / 66

Let's proceed to step 8:
If we divide 455 by 66, we get 6 and a remainder of 59.
Use 6 as the next digit of our solution. 
Result so far: 1309486.0
The remainder is 59 after subtracting 396 from 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 9:
When dividing 590 by 66, we get 8 with a remainder of 62.
The next digit of our result is 8. 
Result so far: 1309486.8
If we subtract 528 from 590, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 10:
620 divided by 66 is 9 with a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 1309486.89
If we subtract 594 from 620, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 11:
The number 66 fits into 260 3 times, leaving a remainder of 62.
Use 3 as the next digit of our solution. 
Result so far: 1309486.893
The remainder is 62 after subtracting 198 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 12:
66 goes into 620 9 times with a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 1309486.8939
Subtracting 594 from 620 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 13:
The number 66 fits into 260 3 times, leaving a remainder of 62.
Put 3 as the next digit of the answer. 
Result so far: 1309486.89393
If we subtract 198 from 260, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 14:
66 can be fit into 620 9 times, resulting in a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 1309486.893939
If we subtract 594 from 620, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 15:
66 goes into 260 3 times with a remainder of 62.
Use 3 as the next digit of our solution. 
Result so far: 1309486.8939393
The remainder is 62 after subtracting 198 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 16:
If we divide 620 by 66, we get 9 and a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 1309486.89393939
Subtract 594 from 620 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

After the division, we end up with 1309486.89393939 and a remainder of 2.6e-08.