We look at the division of 66511687 by 801 
We want to figure out the number of times 66511687 can be divided by 801.

On to step 1:
When dividing 6 by 801, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 801

Let's proceed to step 2:
66 divided by 801 is 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Take the next digit (5) from the dividend and append it to 66, then repeat: 665 / 801

Going ahead to step 3:
801 can be fit into 665 0 times, resulting in a remainder of 665.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 665, we end up with 665.
Grab the next digit (1) from the dividend, add it to 665, then carry on: 6651 / 801

Advancing to step 4:
If we divide 6651 by 801, we get 8 and a remainder of 243.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 6408 from 6651 leaves us with 243.
Fetch the next digit (1) from the dividend, attach it to 243 and continue: 2431 / 801

Step 5:
If we divide 2431 by 801, we get 3 and a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 83.0
The remainder is 28 after subtracting 2403 from 2431.
Take the next digit (6) from the dividend and append it to 28, then repeat: 286 / 801

On to step 6:
801 can be fit into 286 0 times, resulting in a remainder of 286.
Put 0 as the next digit of the answer. 
Result so far: 830.0
The remainder is 286 after subtracting 0 from 286.
Take the next digit (8) from the dividend and append it to 286, then repeat: 2868 / 801

Moving on to step 7:
801 can be fit into 2868 3 times, resulting in a remainder of 465.
Put 3 as the next digit of the answer. 
Result so far: 8303.0
If we take 2403 away from 2868, we end up with 465.
Bring next digit (7) of the dividend behind the 465 and repeat the process: 4657 / 801

Going ahead to step 8:
801 can be fit into 4657 5 times, resulting in a remainder of 652.
Put 5 as the next digit of the answer. 
Result so far: 83035.0
If we take 4005 away from 4657, we end up with 652.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6520, and continue the process.

Advancing to step 9:
801 goes into 6520 8 times with a remainder of 112.
Use 8 as the next digit of our solution. 
Result so far: 83035.8
Subtracting 6408 from 6520 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 10:
801 can be fit into 1120 1 times, resulting in a remainder of 319.
Record the quotient 1 as the next digit in the result. 
Result so far: 83035.81
Deduct 801 from 1120 and we're left with 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

Advancing to step 11:
If we divide 3190 by 801, we get 3 and a remainder of 787.
The number 3 becomes the next digit in our result. 
Result so far: 83035.813
Deduct 2403 from 3190 and we're left with 787.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7870, and continue the process.

Step 12:
801 goes into 7870 9 times with a remainder of 661.
Write down 9 as next digit of the result. 
Result so far: 83035.8139
If we subtract 7209 from 7870, we get 661.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6610, and continue the process.

Step 13:
801 goes into 6610 8 times with a remainder of 202.
Record the quotient 8 as the next digit in the result. 
Result so far: 83035.81398
Subtract 6408 from 6610 to get 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Advancing to step 14:
801 can be fit into 2020 2 times, resulting in a remainder of 418.
Use 2 as the next digit of our solution. 
Result so far: 83035.813982
Subtract 1602 from 2020 to get 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Advancing to step 15:
The number 801 fits into 4180 5 times, leaving a remainder of 175.
Record the quotient 5 as the next digit in the result. 
Result so far: 83035.8139825
Subtracting 4005 from 4180 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Let's proceed to step 16:
801 can be fit into 1750 2 times, resulting in a remainder of 148.
The next digit of our result is 2. 
Result so far: 83035.81398252
Deduct 1602 from 1750 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Our division results in 83035.81398252 with a remaining 1.48e-07.