84975397 ÷ 172 
We want to figure out the number of times 84975397 can be divided by 172.

Going ahead to step 1:
172 goes into 8 0 times with 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.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 172

Advancing to step 2:
172 can be fit into 84 0 times, resulting in a remainder of 84.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 84 after subtracting 0 from 84.
Grab the next digit (9) from the dividend, add it to 84, then carry on: 849 / 172

Let's proceed to step 3:
When dividing 849 by 172, we get 4 with a remainder of 161.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 688 away from 849, we end up with 161.
Append the next digit (7) from the dividend to 161 and continue with: 1617 / 172

On to step 4:
172 goes into 1617 9 times with a remainder of 69.
Put 9 as the next digit of the answer. 
Result so far: 49.0
If we take 1548 away from 1617, we end up with 69.
Fetch the next digit (5) from the dividend, attach it to 69 and continue: 695 / 172

Going ahead to step 5:
172 can be fit into 695 4 times, resulting in a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 494.0
The remainder is 7 after subtracting 688 from 695.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 172

Let's proceed to step 6:
If we divide 73 by 172, we get 0 and a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 4940.0
Deduct 0 from 73 and we're left with 73.
Include the next digit (9) from the dividend after 73, then repeat: 739 / 172

Moving on to step 7:
172 goes into 739 4 times with a remainder of 51.
The next digit of our result is 4. 
Result so far: 49404.0
If we take 688 away from 739, we end up with 51.
Include the next digit (7) from the dividend after 51, then repeat: 517 / 172

Advancing to step 8:
172 goes into 517 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 494043.0
Subtracting 516 from 517 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
172 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 494043.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
When dividing 100 by 172, we get 0 with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 494043.0
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 494043.0, and the remainder is 0.1.