81978901 ÷ 655 
We want to divide 81978901 by 655.

Step 1:
The number 655 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 655

Let's proceed to step 2:
If we divide 81 by 655, we get 0 and a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Include the next digit (9) from the dividend after 81, then repeat: 819 / 655

Moving on to step 3:
655 goes into 819 1 times with a remainder of 164.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 655 from 819 to get 164.
Append the next digit (7) from the dividend to 164 and continue with: 1647 / 655

Moving on to step 4:
If we divide 1647 by 655, we get 2 and a remainder of 337.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 1310 from 1647 to get 337.
Bring next digit (8) of the dividend behind the 337 and repeat the process: 3378 / 655

Let's proceed to step 5:
655 goes into 3378 5 times with a remainder of 103.
Write down 5 as next digit of the result. 
Result so far: 125.0
If we subtract 3275 from 3378, we get 103.
Fetch the next digit (9) from the dividend, attach it to 103 and continue: 1039 / 655

Moving on to step 6:
If we divide 1039 by 655, we get 1 and a remainder of 384.
Record the quotient 1 as the next digit in the result. 
Result so far: 1251.0
Deduct 655 from 1039 and we're left with 384.
Grab the next digit (0) from the dividend, add it to 384, then carry on: 3840 / 655

Advancing to step 7:
655 goes into 3840 5 times with a remainder of 565.
Write down 5 as next digit of the result. 
Result so far: 12515.0
If we take 3275 away from 3840, we end up with 565.
Bring next digit (1) of the dividend behind the 565 and repeat the process: 5651 / 655

Moving on to step 8:
When dividing 5651 by 655, we get 8 with a remainder of 411.
The next digit of our result is 8. 
Result so far: 125158.0
Subtract 5240 from 5651 to get 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

Moving on to step 9:
The number 655 fits into 4110 6 times, leaving a remainder of 180.
The next digit of our result is 6. 
Result so far: 125158.6
If we take 3930 away from 4110, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 10:
The number 655 fits into 1800 2 times, leaving a remainder of 490.
Put 2 as the next digit of the answer. 
Result so far: 125158.62
If we take 1310 away from 1800, we end up with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Advancing to step 11:
4900 divided by 655 is 7 with a remainder of 315.
The number 7 becomes the next digit in our result. 
Result so far: 125158.627
Deduct 4585 from 4900 and we're left with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Moving on to step 12:
If we divide 3150 by 655, we get 4 and a remainder of 530.
Put 4 as the next digit of the answer. 
Result so far: 125158.6274
If we take 2620 away from 3150, we end up with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Let's proceed to step 13:
5300 divided by 655 is 8 with a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 125158.62748
If we take 5240 away from 5300, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 14:
If we divide 600 by 655, we get 0 and a remainder of 600.
The next digit of our result is 0. 
Result so far: 125158.62748
Subtract 0 from 600 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 15:
When dividing 6000 by 655, we get 9 with a remainder of 105.
Record the quotient 9 as the next digit in the result. 
Result so far: 125158.6274809
The remainder is 105 after subtracting 5895 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 16:
The number 655 fits into 1050 1 times, leaving a remainder of 395.
The number 1 becomes the next digit in our result. 
Result so far: 125158.62748091
If we take 655 away from 1050, we end up with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Our division results in 125158.62748091 with a remaining 3.95e-07.