66237581 ÷ 866 
We want to divide 66237581 by 866.

Going ahead to step 1:
6 divided by 866 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 866

On to step 2:
866 goes into 66 0 times with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Grab the next digit (2) from the dividend, add it to 66, then carry on: 662 / 866

Step 3:
866 goes into 662 0 times with a remainder of 662.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 662, we end up with 662.
Grab the next digit (3) from the dividend, add it to 662, then carry on: 6623 / 866

Step 4:
The number 866 fits into 6623 7 times, leaving a remainder of 561.
The next digit of our result is 7. 
Result so far: 7.0
The remainder is 561 after subtracting 6062 from 6623.
Grab the next digit (7) from the dividend, add it to 561, then carry on: 5617 / 866

Moving on to step 5:
If we divide 5617 by 866, we get 6 and a remainder of 421.
Use 6 as the next digit of our solution. 
Result so far: 76.0
Subtracting 5196 from 5617 leaves us with 421.
Include the next digit (5) from the dividend after 421, then repeat: 4215 / 866

On to step 6:
4215 divided by 866 is 4 with a remainder of 751.
The number 4 becomes the next digit in our result. 
Result so far: 764.0
Deduct 3464 from 4215 and we're left with 751.
Fetch the next digit (8) from the dividend, attach it to 751 and continue: 7518 / 866

On to step 7:
When dividing 7518 by 866, we get 8 with a remainder of 590.
The number 8 becomes the next digit in our result. 
Result so far: 7648.0
Subtract 6928 from 7518 to get 590.
Bring next digit (1) of the dividend behind the 590 and repeat the process: 5901 / 866

Moving on to step 8:
866 can be fit into 5901 6 times, resulting in a remainder of 705.
The number 6 becomes the next digit in our result. 
Result so far: 76486.0
If we take 5196 away from 5901, we end up with 705.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7050, and continue the process.

Step 9:
The number 866 fits into 7050 8 times, leaving a remainder of 122.
Put 8 as the next digit of the answer. 
Result so far: 76486.8
Deduct 6928 from 7050 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 10:
866 can be fit into 1220 1 times, resulting in a remainder of 354.
Put 1 as the next digit of the answer. 
Result so far: 76486.81
Deduct 866 from 1220 and we're left with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Going ahead to step 11:
If we divide 3540 by 866, we get 4 and a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 76486.814
If we take 3464 away from 3540, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 12:
866 goes into 760 0 times with a remainder of 760.
The next digit of our result is 0. 
Result so far: 76486.814
If we subtract 0 from 760, we get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Let's proceed to step 13:
If we divide 7600 by 866, we get 8 and a remainder of 672.
Record the quotient 8 as the next digit in the result. 
Result so far: 76486.81408
Deduct 6928 from 7600 and we're left with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

On to step 14:
6720 divided by 866 is 7 with a remainder of 658.
Write down 7 as next digit of the result. 
Result so far: 76486.814087
Deduct 6062 from 6720 and we're left with 658.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

Going ahead to step 15:
866 can be fit into 6580 7 times, resulting in a remainder of 518.
The number 7 becomes the next digit in our result. 
Result so far: 76486.8140877
Deduct 6062 from 6580 and we're left with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Our division results in 76486.8140877 with a remaining 5.18e-06.