81991618 ÷ 226 
We're looking to find how many times 226 goes into 81991618.

Let's proceed to step 1:
226 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
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 / 226

Advancing to step 2:
226 can be fit into 81 0 times, resulting in a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Append the next digit (9) from the dividend to 81 and continue with: 819 / 226

Advancing to step 3:
226 can be fit into 819 3 times, resulting in a remainder of 141.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 141 after subtracting 678 from 819.
Fetch the next digit (9) from the dividend, attach it to 141 and continue: 1419 / 226

Step 4:
226 can be fit into 1419 6 times, resulting in a remainder of 63.
Write down 6 as next digit of the result. 
Result so far: 36.0
Subtracting 1356 from 1419 leaves us with 63.
Append the next digit (1) from the dividend to 63 and continue with: 631 / 226

Let's proceed to step 5:
631 divided by 226 is 2 with a remainder of 179.
Put 2 as the next digit of the answer. 
Result so far: 362.0
Deduct 452 from 631 and we're left with 179.
Fetch the next digit (6) from the dividend, attach it to 179 and continue: 1796 / 226

Let's proceed to step 6:
226 can be fit into 1796 7 times, resulting in a remainder of 214.
Write down 7 as next digit of the result. 
Result so far: 3627.0
If we take 1582 away from 1796, we end up with 214.
Take the next digit (1) from the dividend and append it to 214, then repeat: 2141 / 226

Step 7:
When dividing 2141 by 226, we get 9 with a remainder of 107.
Put 9 as the next digit of the answer. 
Result so far: 36279.0
Subtracting 2034 from 2141 leaves us with 107.
Include the next digit (8) from the dividend after 107, then repeat: 1078 / 226

On to step 8:
226 can be fit into 1078 4 times, resulting in a remainder of 174.
The number 4 becomes the next digit in our result. 
Result so far: 362794.0
If we take 904 away from 1078, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 9:
1740 divided by 226 is 7 with a remainder of 158.
Use 7 as the next digit of our solution. 
Result so far: 362794.7
Subtract 1582 from 1740 to get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Let's proceed to step 10:
When dividing 1580 by 226, we get 6 with a remainder of 224.
Put 6 as the next digit of the answer. 
Result so far: 362794.76
Deduct 1356 from 1580 and we're left with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 11:
When dividing 2240 by 226, we get 9 with a remainder of 206.
Put 9 as the next digit of the answer. 
Result so far: 362794.769
Subtracting 2034 from 2240 leaves us with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Going ahead to step 12:
226 goes into 2060 9 times with a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 362794.7699
Subtracting 2034 from 2060 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final outcome is 362794.7699, with a leftover of 0.00026.