71043349 ÷ 810 
We want to figure out the number of times 71043349 can be divided by 810.

Going ahead to step 1:
When dividing 7 by 810, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 810

Moving on to step 2:
When dividing 71 by 810, we get 0 with a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Take the next digit (0) from the dividend and append it to 71, then repeat: 710 / 810

Going ahead to step 3:
If we divide 710 by 810, we get 0 and a remainder of 710.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 710 and we're left with 710.
Grab the next digit (4) from the dividend, add it to 710, then carry on: 7104 / 810

Step 4:
The number 810 fits into 7104 8 times, leaving a remainder of 624.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 6480 from 7104 leaves us with 624.
Grab the next digit (3) from the dividend, add it to 624, then carry on: 6243 / 810

On to step 5:
When dividing 6243 by 810, we get 7 with a remainder of 573.
Use 7 as the next digit of our solution. 
Result so far: 87.0
Subtracting 5670 from 6243 leaves us with 573.
Include the next digit (3) from the dividend after 573, then repeat: 5733 / 810

On to step 6:
The number 810 fits into 5733 7 times, leaving a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 877.0
Deduct 5670 from 5733 and we're left with 63.
Grab the next digit (4) from the dividend, add it to 63, then carry on: 634 / 810

Step 7:
The number 810 fits into 634 0 times, leaving a remainder of 634.
The next digit of our result is 0. 
Result so far: 8770.0
Subtract 0 from 634 to get 634.
Grab the next digit (9) from the dividend, add it to 634, then carry on: 6349 / 810

Moving on to step 8:
If we divide 6349 by 810, we get 7 and a remainder of 679.
The next digit of our result is 7. 
Result so far: 87707.0
If we take 5670 away from 6349, we end up with 679.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6790, and continue the process.

On to step 9:
810 can be fit into 6790 8 times, resulting in a remainder of 310.
Write down 8 as next digit of the result. 
Result so far: 87707.8
If we take 6480 away from 6790, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 10:
3100 divided by 810 is 3 with a remainder of 670.
The number 3 becomes the next digit in our result. 
Result so far: 87707.83
Subtract 2430 from 3100 to get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Advancing to step 11:
If we divide 6700 by 810, we get 8 and a remainder of 220.
Write down 8 as next digit of the result. 
Result so far: 87707.838
Deduct 6480 from 6700 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 12:
When dividing 2200 by 810, we get 2 with a remainder of 580.
Put 2 as the next digit of the answer. 
Result so far: 87707.8382
If we take 1620 away from 2200, we end up with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Advancing to step 13:
810 goes into 5800 7 times with a remainder of 130.
The next digit of our result is 7. 
Result so far: 87707.83827
The remainder is 130 after subtracting 5670 from 5800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 14:
810 goes into 1300 1 times with a remainder of 490.
Write down 1 as next digit of the result. 
Result so far: 87707.838271
Subtract 810 from 1300 to get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Let's proceed to step 15:
The number 810 fits into 4900 6 times, leaving a remainder of 40.
The next digit of our result is 6. 
Result so far: 87707.8382716
Deduct 4860 from 4900 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 16:
If we divide 400 by 810, we get 0 and a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 87707.8382716
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 87707.8382716, with a leftover of 4e-07.