81855661 ÷ 851 
We want to figure out the number of times 81855661 can be divided by 851.

Advancing to step 1:
If we divide 8 by 851, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 851

Going ahead to step 2:
851 can be fit into 81 0 times, resulting in a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Fetch the next digit (8) from the dividend, attach it to 81 and continue: 818 / 851

Advancing to step 3:
851 can be fit into 818 0 times, resulting in a remainder of 818.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 818 and we're left with 818.
Bring next digit (5) of the dividend behind the 818 and repeat the process: 8185 / 851

Step 4:
If we divide 8185 by 851, we get 9 and a remainder of 526.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 7659 from 8185 to get 526.
Fetch the next digit (5) from the dividend, attach it to 526 and continue: 5265 / 851

Step 5:
5265 divided by 851 is 6 with a remainder of 159.
Write down 6 as next digit of the result. 
Result so far: 96.0
The remainder is 159 after subtracting 5106 from 5265.
Take the next digit (6) from the dividend and append it to 159, then repeat: 1596 / 851

Going ahead to step 6:
If we divide 1596 by 851, we get 1 and a remainder of 745.
Write down 1 as next digit of the result. 
Result so far: 961.0
If we take 851 away from 1596, we end up with 745.
Include the next digit (6) from the dividend after 745, then repeat: 7456 / 851

Moving on to step 7:
851 goes into 7456 8 times with a remainder of 648.
Write down 8 as next digit of the result. 
Result so far: 9618.0
If we take 6808 away from 7456, we end up with 648.
Grab the next digit (1) from the dividend, add it to 648, then carry on: 6481 / 851

Going ahead to step 8:
6481 divided by 851 is 7 with a remainder of 524.
The number 7 becomes the next digit in our result. 
Result so far: 96187.0
Subtract 5957 from 6481 to get 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Advancing to step 9:
The number 851 fits into 5240 6 times, leaving a remainder of 134.
The number 6 becomes the next digit in our result. 
Result so far: 96187.6
Subtracting 5106 from 5240 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Let's proceed to step 10:
851 can be fit into 1340 1 times, resulting in a remainder of 489.
Write down 1 as next digit of the result. 
Result so far: 96187.61
The remainder is 489 after subtracting 851 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Advancing to step 11:
If we divide 4890 by 851, we get 5 and a remainder of 635.
Use 5 as the next digit of our solution. 
Result so far: 96187.615
Subtracting 4255 from 4890 leaves us with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Moving on to step 12:
If we divide 6350 by 851, we get 7 and a remainder of 393.
Write down 7 as next digit of the result. 
Result so far: 96187.6157
Deduct 5957 from 6350 and we're left with 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

On to step 13:
The number 851 fits into 3930 4 times, leaving a remainder of 526.
Write down 4 as next digit of the result. 
Result so far: 96187.61574
Deduct 3404 from 3930 and we're left with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

On to step 14:
851 goes into 5260 6 times with a remainder of 154.
Record the quotient 6 as the next digit in the result. 
Result so far: 96187.615746
Subtract 5106 from 5260 to get 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Advancing to step 15:
851 goes into 1540 1 times with a remainder of 689.
Use 1 as the next digit of our solution. 
Result so far: 96187.6157461
If we take 851 away from 1540, we end up with 689.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6890, and continue the process.

Step 16:
The number 851 fits into 6890 8 times, leaving a remainder of 82.
Put 8 as the next digit of the answer. 
Result so far: 96187.61574618
Subtract 6808 from 6890 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

The final result is 96187.61574618 with a remainder of 8.2e-08.