70307205 ÷ 172 
Our goal is to divide 70307205 by 172.

Step 1:
The number 172 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 172

Step 2:
172 goes into 70 0 times with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Bring next digit (3) of the dividend behind the 70 and repeat the process: 703 / 172

Let's proceed to step 3:
The number 172 fits into 703 4 times, leaving a remainder of 15.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 688 away from 703, we end up with 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 172

Step 4:
If we divide 150 by 172, we get 0 and a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Subtract 0 from 150 to get 150.
Grab the next digit (7) from the dividend, add it to 150, then carry on: 1507 / 172

Let's proceed to step 5:
172 goes into 1507 8 times with a remainder of 131.
Record the quotient 8 as the next digit in the result. 
Result so far: 408.0
Subtracting 1376 from 1507 leaves us with 131.
Take the next digit (2) from the dividend and append it to 131, then repeat: 1312 / 172

Moving on to step 6:
If we divide 1312 by 172, we get 7 and a remainder of 108.
Use 7 as the next digit of our solution. 
Result so far: 4087.0
Subtracting 1204 from 1312 leaves us with 108.
Append the next digit (0) from the dividend to 108 and continue with: 1080 / 172

Advancing to step 7:
The number 172 fits into 1080 6 times, leaving a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 40876.0
Subtracting 1032 from 1080 leaves us with 48.
Grab the next digit (5) from the dividend, add it to 48, then carry on: 485 / 172

Step 8:
If we divide 485 by 172, we get 2 and a remainder of 141.
Write down 2 as next digit of the result. 
Result so far: 408762.0
Deduct 344 from 485 and we're left with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Let's proceed to step 9:
172 goes into 1410 8 times with a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 408762.8
Deduct 1376 from 1410 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 10:
340 divided by 172 is 1 with a remainder of 168.
Write down 1 as next digit of the result. 
Result so far: 408762.81
Subtracting 172 from 340 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 11:
172 can be fit into 1680 9 times, resulting in a remainder of 132.
Put 9 as the next digit of the answer. 
Result so far: 408762.819
If we take 1548 away from 1680, we end up with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Going ahead to step 12:
172 can be fit into 1320 7 times, resulting in a remainder of 116.
Use 7 as the next digit of our solution. 
Result so far: 408762.8197
Subtract 1204 from 1320 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 13:
When dividing 1160 by 172, we get 6 with a remainder of 128.
The number 6 becomes the next digit in our result. 
Result so far: 408762.81976
Deduct 1032 from 1160 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 14:
172 can be fit into 1280 7 times, resulting in a remainder of 76.
Use 7 as the next digit of our solution. 
Result so far: 408762.819767
Subtract 1204 from 1280 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 15:
When dividing 760 by 172, we get 4 with a remainder of 72.
Write down 4 as next digit of the result. 
Result so far: 408762.8197674
The remainder is 72 after subtracting 688 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 16:
172 can be fit into 720 4 times, resulting in a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 408762.81976744
Subtract 688 from 720 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 408762.81976744 with a remainder of 3.2e-08.