69210134 ÷ 849 
We want to divide 69210134 by 849.

Advancing to step 1:
6 divided by 849 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 849

On to step 2:
849 can be fit into 69 0 times, resulting in a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 69 after subtracting 0 from 69.
Take the next digit (2) from the dividend and append it to 69, then repeat: 692 / 849

Step 3:
The number 849 fits into 692 0 times, leaving a remainder of 692.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 692 and we're left with 692.
Grab the next digit (1) from the dividend, add it to 692, then carry on: 6921 / 849

Moving on to step 4:
849 can be fit into 6921 8 times, resulting in a remainder of 129.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 6792 from 6921, we get 129.
Append the next digit (0) from the dividend to 129 and continue with: 1290 / 849

On to step 5:
When dividing 1290 by 849, we get 1 with a remainder of 441.
Put 1 as the next digit of the answer. 
Result so far: 81.0
Deduct 849 from 1290 and we're left with 441.
Include the next digit (1) from the dividend after 441, then repeat: 4411 / 849

Let's proceed to step 6:
If we divide 4411 by 849, we get 5 and a remainder of 166.
Write down 5 as next digit of the result. 
Result so far: 815.0
If we subtract 4245 from 4411, we get 166.
Fetch the next digit (3) from the dividend, attach it to 166 and continue: 1663 / 849

On to step 7:
If we divide 1663 by 849, we get 1 and a remainder of 814.
Write down 1 as next digit of the result. 
Result so far: 8151.0
Deduct 849 from 1663 and we're left with 814.
Include the next digit (4) from the dividend after 814, then repeat: 8144 / 849

Moving on to step 8:
If we divide 8144 by 849, we get 9 and a remainder of 503.
Put 9 as the next digit of the answer. 
Result so far: 81519.0
If we subtract 7641 from 8144, we get 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Let's proceed to step 9:
849 goes into 5030 5 times with a remainder of 785.
Put 5 as the next digit of the answer. 
Result so far: 81519.5
Deduct 4245 from 5030 and we're left with 785.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7850, and continue the process.

Let's proceed to step 10:
When dividing 7850 by 849, we get 9 with a remainder of 209.
Use 9 as the next digit of our solution. 
Result so far: 81519.59
If we subtract 7641 from 7850, we get 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Step 11:
When dividing 2090 by 849, we get 2 with a remainder of 392.
Write down 2 as next digit of the result. 
Result so far: 81519.592
The remainder is 392 after subtracting 1698 from 2090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 12:
When dividing 3920 by 849, we get 4 with a remainder of 524.
The next digit of our result is 4. 
Result so far: 81519.5924
Subtract 3396 from 3920 to get 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Step 13:
849 can be fit into 5240 6 times, resulting in a remainder of 146.
The next digit of our result is 6. 
Result so far: 81519.59246
If we subtract 5094 from 5240, we get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Step 14:
If we divide 1460 by 849, we get 1 and a remainder of 611.
Use 1 as the next digit of our solution. 
Result so far: 81519.592461
Subtracting 849 from 1460 leaves us with 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

On to step 15:
849 goes into 6110 7 times with a remainder of 167.
Put 7 as the next digit of the answer. 
Result so far: 81519.5924617
Subtracting 5943 from 6110 leaves us with 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Moving on to step 16:
When dividing 1670 by 849, we get 1 with a remainder of 821.
The number 1 becomes the next digit in our result. 
Result so far: 81519.59246171
Subtracting 849 from 1670 leaves us with 821.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8210, and continue the process.

The final outcome is 81519.59246171, with a leftover of 8.21e-07.