81659461 ÷ 31 
We're looking to find how many times 31 goes into 81659461.

Advancing to step 1:
When dividing 8 by 31, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 31

Advancing to step 2:
31 can be fit into 81 2 times, resulting in a remainder of 19.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 62 from 81 to get 19.
Include the next digit (6) from the dividend after 19, then repeat: 196 / 31

On to step 3:
The number 31 fits into 196 6 times, leaving a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
If we take 186 away from 196, we end up with 10.
Fetch the next digit (5) from the dividend, attach it to 10 and continue: 105 / 31

Step 4:
31 can be fit into 105 3 times, resulting in a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 263.0
If we take 93 away from 105, we end up with 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 31

Step 5:
The number 31 fits into 129 4 times, leaving a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 2634.0
Deduct 124 from 129 and we're left with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 31

Step 6:
When dividing 54 by 31, we get 1 with a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 26341.0
The remainder is 23 after subtracting 31 from 54.
Fetch the next digit (6) from the dividend, attach it to 23 and continue: 236 / 31

On to step 7:
The number 31 fits into 236 7 times, leaving a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 263417.0
Subtract 217 from 236 to get 19.
Bring next digit (1) of the dividend behind the 19 and repeat the process: 191 / 31

On to step 8:
31 can be fit into 191 6 times, resulting in a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 2634176.0
If we take 186 away from 191, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
31 goes into 50 1 times with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 2634176.1
Deduct 31 from 50 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 10:
When dividing 190 by 31, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 2634176.16
If we take 186 away from 190, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 11:
40 divided by 31 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 2634176.161
The remainder is 9 after subtracting 31 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 12:
90 divided by 31 is 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 2634176.1612
The remainder is 28 after subtracting 62 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 13:
31 goes into 280 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 2634176.16129
Deduct 279 from 280 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 14:
The number 31 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 2634176.16129
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 15:
If we divide 100 by 31, we get 3 and a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 2634176.1612903
Subtracting 93 from 100 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 16:
70 divided by 31 is 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 2634176.16129032
Subtracting 62 from 70 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 2634176.16129032 with a balance of 8e-09.