We look at the division of 7861583 by 172 
The aim is to understand the frequency of 172 in 7861583.

Going ahead to step 1:
172 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 172

Step 2:
172 goes into 78 0 times with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Grab the next digit (6) from the dividend, add it to 78, then carry on: 786 / 172

Let's proceed to step 3:
786 divided by 172 is 4 with a remainder of 98.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 688 from 786, we get 98.
Append the next digit (1) from the dividend to 98 and continue with: 981 / 172

Advancing to step 4:
981 divided by 172 is 5 with a remainder of 121.
Write down 5 as next digit of the result. 
Result so far: 45.0
Deduct 860 from 981 and we're left with 121.
Include the next digit (5) from the dividend after 121, then repeat: 1215 / 172

Going ahead to step 5:
1215 divided by 172 is 7 with a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 457.0
If we take 1204 away from 1215, we end up with 11.
Fetch the next digit (8) from the dividend, attach it to 11 and continue: 118 / 172

On to step 6:
The number 172 fits into 118 0 times, leaving a remainder of 118.
Write down 0 as next digit of the result. 
Result so far: 4570.0
Deduct 0 from 118 and we're left with 118.
Fetch the next digit (3) from the dividend, attach it to 118 and continue: 1183 / 172

Going ahead to step 7:
When dividing 1183 by 172, we get 6 with a remainder of 151.
The number 6 becomes the next digit in our result. 
Result so far: 45706.0
If we subtract 1032 from 1183, we get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Let's proceed to step 8:
172 goes into 1510 8 times with a remainder of 134.
Put 8 as the next digit of the answer. 
Result so far: 45706.8
If we subtract 1376 from 1510, we get 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Moving on to step 9:
When dividing 1340 by 172, we get 7 with a remainder of 136.
Write down 7 as next digit of the result. 
Result so far: 45706.87
Deduct 1204 from 1340 and we're left with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Step 10:
The number 172 fits into 1360 7 times, leaving a remainder of 156.
Write down 7 as next digit of the result. 
Result so far: 45706.877
If we take 1204 away from 1360, we end up with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

In conclusion, the division gives 45706.877 with a balance of 0.0156.