We're dividing 83515396 by 581 
We want to figure out the number of times 83515396 can be divided by 581.

Advancing to step 1:
581 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 581

Going ahead to step 2:
83 divided by 581 is 0 with a remainder of 83.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 83 to get 83.
Include the next digit (5) from the dividend after 83, then repeat: 835 / 581

Let's proceed to step 3:
The number 581 fits into 835 1 times, leaving a remainder of 254.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 581 from 835, we get 254.
Grab the next digit (1) from the dividend, add it to 254, then carry on: 2541 / 581

Step 4:
When dividing 2541 by 581, we get 4 with a remainder of 217.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
The remainder is 217 after subtracting 2324 from 2541.
Take the next digit (5) from the dividend and append it to 217, then repeat: 2175 / 581

Let's proceed to step 5:
The number 581 fits into 2175 3 times, leaving a remainder of 432.
Write down 3 as next digit of the result. 
Result so far: 143.0
The remainder is 432 after subtracting 1743 from 2175.
Take the next digit (3) from the dividend and append it to 432, then repeat: 4323 / 581

Going ahead to step 6:
If we divide 4323 by 581, we get 7 and a remainder of 256.
Use 7 as the next digit of our solution. 
Result so far: 1437.0
Subtract 4067 from 4323 to get 256.
Take the next digit (9) from the dividend and append it to 256, then repeat: 2569 / 581

Advancing to step 7:
When dividing 2569 by 581, we get 4 with a remainder of 245.
Write down 4 as next digit of the result. 
Result so far: 14374.0
The remainder is 245 after subtracting 2324 from 2569.
Take the next digit (6) from the dividend and append it to 245, then repeat: 2456 / 581

Moving on to step 8:
The number 581 fits into 2456 4 times, leaving a remainder of 132.
The next digit of our result is 4. 
Result so far: 143744.0
The remainder is 132 after subtracting 2324 from 2456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 9:
581 can be fit into 1320 2 times, resulting in a remainder of 158.
The number 2 becomes the next digit in our result. 
Result so far: 143744.2
Deduct 1162 from 1320 and we're left with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

On to step 10:
1580 divided by 581 is 2 with a remainder of 418.
The number 2 becomes the next digit in our result. 
Result so far: 143744.22
If we take 1162 away from 1580, we end up with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

After the division, we end up with 143744.22 and a remainder of 0.418.