81642861 divided by 147 
We want to figure out the number of times 81642861 can be divided by 147.

On to step 1:
147 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 147

On to step 2:
147 goes into 81 0 times with a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Append the next digit (6) from the dividend to 81 and continue with: 816 / 147

Moving on to step 3:
When dividing 816 by 147, we get 5 with a remainder of 81.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 735 from 816 to get 81.
Grab the next digit (4) from the dividend, add it to 81, then carry on: 814 / 147

Moving on to step 4:
147 can be fit into 814 5 times, resulting in a remainder of 79.
The next digit of our result is 5. 
Result so far: 55.0
Deduct 735 from 814 and we're left with 79.
Bring next digit (2) of the dividend behind the 79 and repeat the process: 792 / 147

On to step 5:
147 goes into 792 5 times with a remainder of 57.
Use 5 as the next digit of our solution. 
Result so far: 555.0
If we subtract 735 from 792, we get 57.
Append the next digit (8) from the dividend to 57 and continue with: 578 / 147

Going ahead to step 6:
578 divided by 147 is 3 with a remainder of 137.
Put 3 as the next digit of the answer. 
Result so far: 5553.0
Subtracting 441 from 578 leaves us with 137.
Fetch the next digit (6) from the dividend, attach it to 137 and continue: 1376 / 147

Advancing to step 7:
When dividing 1376 by 147, we get 9 with a remainder of 53.
Put 9 as the next digit of the answer. 
Result so far: 55539.0
Deduct 1323 from 1376 and we're left with 53.
Fetch the next digit (1) from the dividend, attach it to 53 and continue: 531 / 147

Moving on to step 8:
147 goes into 531 3 times with a remainder of 90.
Put 3 as the next digit of the answer. 
Result so far: 555393.0
If we take 441 away from 531, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 9:
900 divided by 147 is 6 with a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 555393.6
The remainder is 18 after subtracting 882 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
147 goes into 180 1 times with a remainder of 33.
The number 1 becomes the next digit in our result. 
Result so far: 555393.61
If we subtract 147 from 180, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 11:
The number 147 fits into 330 2 times, leaving a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 555393.612
If we take 294 away from 330, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
147 goes into 360 2 times with a remainder of 66.
Put 2 as the next digit of the answer. 
Result so far: 555393.6122
Subtracting 294 from 360 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final outcome is 555393.6122, with a leftover of 0.00066.