79158864 ÷ 571 
Let's see how many times 571 fits into 79158864.

On to step 1:
If we divide 7 by 571, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 571

Step 2:
79 divided by 571 is 0 with a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Grab the next digit (1) from the dividend, add it to 79, then carry on: 791 / 571

Step 3:
When dividing 791 by 571, we get 1 with a remainder of 220.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 220 after subtracting 571 from 791.
Include the next digit (5) from the dividend after 220, then repeat: 2205 / 571

Step 4:
If we divide 2205 by 571, we get 3 and a remainder of 492.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 1713 away from 2205, we end up with 492.
Append the next digit (8) from the dividend to 492 and continue with: 4928 / 571

Going ahead to step 5:
571 can be fit into 4928 8 times, resulting in a remainder of 360.
Use 8 as the next digit of our solution. 
Result so far: 138.0
If we take 4568 away from 4928, we end up with 360.
Grab the next digit (8) from the dividend, add it to 360, then carry on: 3608 / 571

Let's proceed to step 6:
3608 divided by 571 is 6 with a remainder of 182.
The next digit of our result is 6. 
Result so far: 1386.0
If we subtract 3426 from 3608, we get 182.
Append the next digit (6) from the dividend to 182 and continue with: 1826 / 571

On to step 7:
If we divide 1826 by 571, we get 3 and a remainder of 113.
The next digit of our result is 3. 
Result so far: 13863.0
If we take 1713 away from 1826, we end up with 113.
Grab the next digit (4) from the dividend, add it to 113, then carry on: 1134 / 571

Advancing to step 8:
The number 571 fits into 1134 1 times, leaving a remainder of 563.
The next digit of our result is 1. 
Result so far: 138631.0
If we subtract 571 from 1134, we get 563.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5630, and continue the process.

On to step 9:
571 goes into 5630 9 times with a remainder of 491.
Use 9 as the next digit of our solution. 
Result so far: 138631.9
Deduct 5139 from 5630 and we're left with 491.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4910, and continue the process.

Advancing to step 10:
If we divide 4910 by 571, we get 8 and a remainder of 342.
Record the quotient 8 as the next digit in the result. 
Result so far: 138631.98
If we take 4568 away from 4910, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Step 11:
3420 divided by 571 is 5 with a remainder of 565.
Write down 5 as next digit of the result. 
Result so far: 138631.985
If we take 2855 away from 3420, we end up with 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Advancing to step 12:
571 can be fit into 5650 9 times, resulting in a remainder of 511.
Write down 9 as next digit of the result. 
Result so far: 138631.9859
Subtract 5139 from 5650 to get 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Advancing to step 13:
When dividing 5110 by 571, we get 8 with a remainder of 542.
The next digit of our result is 8. 
Result so far: 138631.98598
If we subtract 4568 from 5110, we get 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Let's proceed to step 14:
571 goes into 5420 9 times with a remainder of 281.
The number 9 becomes the next digit in our result. 
Result so far: 138631.985989
Subtracting 5139 from 5420 leaves us with 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Advancing to step 15:
If we divide 2810 by 571, we get 4 and a remainder of 526.
Record the quotient 4 as the next digit in the result. 
Result so far: 138631.9859894
Subtract 2284 from 2810 to get 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

Step 16:
571 can be fit into 5260 9 times, resulting in a remainder of 121.
Put 9 as the next digit of the answer. 
Result so far: 138631.98598949
Subtract 5139 from 5260 to get 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Our division results in 138631.98598949 with a remaining 1.21e-07.